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Best podcasts about larval

Latest podcast episodes about larval

Bob Enyart Live

Listen in as Real Science Radio host Fred Williams and co-host Doug McBurney review and update some of Bob Enyart's legendary list of not so old things! From Darwin's Finches to opals forming in months to man's genetic diversity in 200 generations, to carbon 14 everywhere it's not supposed to be (including in diamonds and dinosaur bones!), scientific observations simply defy the claim that the earth is billions of years old. Real science demands the dismissal of the alleged million and billion year ages asserted by the ungodly and the foolish.     * Finches Adapt in 17 Years, Not 2.3 Million: Charles Darwin's finches are claimed to have taken 2,300,000 years to diversify from an initial species blown onto the Galapagos Islands. Yet individuals from a single finch species on a U.S. Bird Reservation in the Pacific were introduced to a group of small islands 300 miles away and in at most 17 years, like Darwin's finches, they had diversified their beaks, related muscles, and behavior to fill various ecological niches. Hear about this also at rsr.org/spetner.  * Finches Speciate in Two Generations vs Two Million Years for Darwin's Birds?  Darwin's finches on the Galapagos Islands are said to have diversified into 14 species over a period of two million years. But in 2017 the journal Science reported a newcomer to the Island which within two generations spawned a reproductively isolated new species. In another instance as documented by Lee Spetner, a hundred birds of the same finch species introduced to an island cluster a 1,000 kilometers from Galapagos diversified into species with the typical variations in beak sizes, etc. "If this diversification occurred in less than seventeen years," Dr. Spetner asks, "why did Darwin's Galapagos finches [as claimed by evolutionists] have to take two million years?" * Opals Can Form in "A Few Months" And Don't Need 100,000 Years: A leading authority on opals, Allan W. Eckert, observed that, "scientific papers and textbooks have told that the process of opal formation requires tens of thousands of years, perhaps hundreds of thousands... Not true." A 2011 peer-reviewed paper in a geology journal from Australia, where almost all the world's opal is found, reported on the: "new timetable for opal formation involving weeks to a few months and not the hundreds of thousands of years envisaged by the conventional weathering model." (And apparently, per a 2019 report from Entomology Today, opals can even form around insects!) More knowledgeable scientists resist the uncritical, group-think insistence on false super-slow formation rates (as also for manganese nodules, gold veins, stone, petroleum, canyons and gullies, and even guts, all below). Regarding opals, Darwinian bias led geologists to long ignore possible quick action, as from microbes, as a possible explanation for these mineraloids. For both in nature and in the lab, opals form rapidly, not even in 10,000 years, but in weeks. See this also from creationists by a geologist, a paleobiochemist, and a nuclear chemist. * Blue Eyes Originated Not So Long Ago: Not a million years ago, nor a hundred thousand years ago, but based on a peer-reviewed paper in Human Genetics, a press release at Science Daily reports that, "research shows that people with blue eyes have a single, common ancestor. A team at the University of Copenhagen have tracked down a genetic mutation which took place 6-10,000 years ago and is the cause of the eye color of all blue-eyed humans alive on the planet today." * Adding the Entire Universe to our List of Not So Old Things? Based on March 2019 findings from Hubble, Nobel laureate Adam Riess of the Space Telescope Science Institute and his co-authors in the Astrophysical Journal estimate that the universe is about a billion years younger than previously thought! Then in September 2019 in the journal Science, the age dropped precipitously to as low as 11.4 billion years! Of course, these measurements also further squeeze the canonical story of the big bang chronology with its many already existing problems including the insufficient time to "evolve" distant mature galaxies, galaxy clusters, superclusters, enormous black holes, filaments, bubbles, walls, and other superstructures. So, even though the latest estimates are still absurdly too old (Google: big bang predictions, and click on the #1 ranked article, or just go on over there to rsr.org/bb), regardless, we thought we'd plop the whole universe down on our List of Not So Old Things!   * After the Soft Tissue Discoveries, NOW Dino DNA: When a North Carolina State University paleontologist took the Tyrannosaurus Rex photos to the right of original biological material, that led to the 2016 discovery of dinosaur DNA, So far researchers have also recovered dinosaur blood vessels, collagen, osteocytes, hemoglobin, red blood cells, and various proteins. As of May 2018, twenty-six scientific journals, including Nature, Science, PNAS, PLoS One, Bone, and Journal of Vertebrate Paleontology, have confirmed the discovery of biomaterial fossils from many dinosaurs! Organisms including T. Rex, hadrosaur, titanosaur, triceratops, Lufengosaur, mosasaur, and Archaeopteryx, and many others dated, allegedly, even hundreds of millions of years old, have yielded their endogenous, still-soft biological material. See the web's most complete listing of 100+ journal papers (screenshot, left) announcing these discoveries at bflist.rsr.org and see it in layman's terms at rsr.org/soft. * Rapid Stalactites, Stalagmites, Etc.: A construction worker in 1954 left a lemonade bottle in one of Australia's famous Jenolan Caves. By 2011 it had been naturally transformed into a stalagmite (below, right). Increasing scientific knowledge is arguing for rapid cave formation (see below, Nat'l Park Service shrinks Carlsbad Caverns formation estimates from 260M years, to 10M, to 2M, to it "depends"). Likewise, examples are growing of rapid formations with typical chemical make-up (see bottle, left) of classic stalactites and stalagmites including: - in Nat'l Geo the Carlsbad Caverns stalagmite that rapidly covered a bat - the tunnel stalagmites at Tennessee's Raccoon Mountain - hundreds of stalactites beneath the Lincoln Memorial - those near Gladfelter Hall at Philadelphia's Temple University (send photos to Bob@rsr.org) - hundreds of stalactites at Australia's zinc mine at Mt. Isa.   - and those beneath Melbourne's Shrine of Remembrance. * Most Human Mutations Arose in 200 Generations: From Adam until Real Science Radio, in only 200 generations! The journal Nature reports The Recent Origin of Most Human Protein-coding Variants. As summarized by geneticist co-author Joshua Akey, "Most of the mutations that we found arose in the last 200 generations or so" (the same number previously published by biblical creationists). Another 2012 paper, in the American Journal of Physical Anthropology (Eugenie Scott's own field) on High mitochondrial mutation rates, shows that one mitochondrial DNA mutation occurs every other generation, which, as creationists point out, indicates that mtEve would have lived about 200 generations ago. That's not so old! * National Geographic's Not-So-Old Hard-Rock Canyon at Mount St. Helens: As our List of Not So Old Things (this web page) reveals, by a kneejerk reaction evolutionary scientists assign ages of tens or hundreds of thousands of years (or at least just long enough to contradict Moses' chronology in Genesis.) However, with closer study, routinely, more and more old ages get revised downward to fit the world's growing scientific knowledge. So the trend is not that more information lengthens ages, but rather, as data replaces guesswork, ages tend to shrink until they are consistent with the young-earth biblical timeframe. Consistent with this observation, the May 2000 issue of National Geographic quotes the U.S. Forest Service's scientist at Mount St. Helens, Peter Frenzen, describing the canyon on the north side of the volcano. "You'd expect a hard-rock canyon to be thousands, even hundreds of thousands of years old. But this was cut in less than a decade." And as for the volcano itself, while again, the kneejerk reaction of old-earthers would be to claim that most geologic features are hundreds of thousands or millions of years old, the atheistic National Geographic magazine acknowledges from the evidence that Mount St. Helens, the volcanic mount, is only about 4,000 years old! See below and more at rsr.org/mount-st-helens. * Mount St. Helens Dome Ten Years Old not 1.7 Million: Geochron Laboratories of Cambridge, Mass., using potassium-argon and other radiometric techniques claims the rock sample they dated, from the volcano's dome, solidified somewhere between 340,000 and 2.8 million years ago. However photographic evidence and historical reports document the dome's formation during the 1980s, just ten years prior to the samples being collected. With the age of this rock known, radiometric dating therefore gets the age 99.99999% wrong. * Devils Hole Pupfish Isolated Not for 13,000 Years But for 100: Secular scientists default to knee-jerk, older-than-Bible-age dates. However, a tiny Mojave desert fish is having none of it. Rather than having been genetically isolated from other fish for 13,000 years (which would make this small school of fish older than the Earth itself), according to a paper in the journal Nature, actual measurements of mutation rates indicate that the genetic diversity of these Pupfish could have been generated in about 100 years, give or take a few. * Polystrates like Spines and Rare Schools of Fossilized Jellyfish: Previously, seven sedimentary layers in Wisconsin had been described as taking a million years to form. And because jellyfish have no skeleton, as Charles Darwin pointed out, it is rare to find them among fossils. But now, reported in the journal Geology, a school of jellyfish fossils have been found throughout those same seven layers. So, polystrate fossils that condense the time of strata deposition from eons to hours or months, include: - Jellyfish in central Wisconsin were not deposited and fossilized over a million years but during a single event quick enough to trap a whole school. (This fossil school, therefore, taken as a unit forms a polystrate fossil.) Examples are everywhere that falsify the claims of strata deposition over millions of years. - Countless trilobites buried in astounding three dimensionality around the world are meticulously recovered from limestone, much of which is claimed to have been deposited very slowly. Contrariwise, because these specimens were buried rapidly in quickly laid down sediments, they show no evidence of greater erosion on their upper parts as compared to their lower parts. - The delicacy of radiating spine polystrates, like tadpole and jellyfish fossils, especially clearly demonstrate the rapidity of such strata deposition. - A second school of jellyfish, even though they rarely fossilized, exists in another locale with jellyfish fossils in multiple layers, in Australia's Brockman Iron Formation, constraining there too the rate of strata deposition. By the way, jellyfish are an example of evolution's big squeeze. Like galaxies evolving too quickly, 

america university california world australia google earth science bible washington france space real nature africa european writing philadelphia australian evolution japanese dna minnesota tennessee modern hawaii wisconsin bbc 3d island journal nbc birds melbourne mt chile flash mass scientists abortion cambridge increasing pacific conservatives bone wyoming consistent generations iceland ohio state instant wired decades rapid nobel national geographic talks remembrance maui yellowstone national park wing copenhagen grand canyon chemical big bang nova scotia nbc news smithsonian secular daily mail telegraph arial temple university groundbreaking screenshots 2m helvetica papua new guinea charles darwin 10m variants death valley geology jellyfish american journal geo nps national park service hubble north carolina state university steve austin public libraries cambridge university press missoula galapagos geographic organisms mojave diabolical forest service aig darwinian veins mount st tyrannosaurus rex new scientist lincoln memorial helens plos one galapagos islands shri inky cambrian cmi human genetics pnas live science science daily canadian arctic opals asiatic spines canadian broadcasting corporation finches rsr park service two generations 3den unintelligible spirit lake junk dna space telescope science institute carlsbad caverns archaeopteryx fred williams ctrl f 260m nature geoscience from creation vertebrate paleontology 2fjournal from darwin physical anthropology eugenie scott british geological survey 3dtrue larval 252c adam riess bob enyart ctowud raleway oligocene 3dfalse jenolan caves ctowud a6t real science radio allan w eckert kgov
Real Science Radio

Listen in as Real Science Radio host Fred Williams and co-host Doug McBurney review and update some of Bob Enyart's legendary list of not so old things! From Darwin's Finches to opals forming in months to man's genetic diversity in 200 generations, to carbon 14 everywhere it's not supposed to be (including in diamonds and dinosaur bones!), scientific observations simply defy the claim that the earth is billions of years old. Real science demands the dismissal of the alleged million and billion year ages asserted by the ungodly and the foolish.   * Finches Adapt in 17 Years, Not 2.3 Million: Charles Darwin's finches are claimed to have taken 2,300,000 years to diversify from an initial species blown onto the Galapagos Islands. Yet individuals from a single finch species on a U.S. Bird Reservation in the Pacific were introduced to a group of small islands 300 miles away and in at most 17 years, like Darwin's finches, they had diversified their beaks, related muscles, and behavior to fill various ecological niches. Hear about this also at rsr.org/spetner.  * Finches Speciate in Two Generations vs Two Million Years for Darwin's Birds?  Darwin's finches on the Galapagos Islands are said to have diversified into 14 species over a period of two million years. But in 2017 the journal Science reported a newcomer to the Island which within two generations spawned a reproductively isolated new species. In another instance as documented by Lee Spetner, a hundred birds of the same finch species introduced to an island cluster a 1,000 kilometers from Galapagos diversified into species with the typical variations in beak sizes, etc. "If this diversification occurred in less than seventeen years," Dr. Spetner asks, "why did Darwin's Galapagos finches [as claimed by evolutionists] have to take two million years?" * Opals Can Form in "A Few Months" And Don't Need 100,000 Years: A leading authority on opals, Allan W. Eckert, observed that, "scientific papers and textbooks have told that the process of opal formation requires tens of thousands of years, perhaps hundreds of thousands... Not true." A 2011 peer-reviewed paper in a geology journal from Australia, where almost all the world's opal is found, reported on the: "new timetable for opal formation involving weeks to a few months and not the hundreds of thousands of years envisaged by the conventional weathering model." (And apparently, per a 2019 report from Entomology Today, opals can even form around insects!) More knowledgeable scientists resist the uncritical, group-think insistence on false super-slow formation rates (as also for manganese nodules, gold veins, stone, petroleum, canyons and gullies, and even guts, all below). Regarding opals, Darwinian bias led geologists to long ignore possible quick action, as from microbes, as a possible explanation for these mineraloids. For both in nature and in the lab, opals form rapidly, not even in 10,000 years, but in weeks. See this also from creationists by a geologist, a paleobiochemist, and a nuclear chemist. * Blue Eyes Originated Not So Long Ago: Not a million years ago, nor a hundred thousand years ago, but based on a peer-reviewed paper in Human Genetics, a press release at Science Daily reports that, "research shows that people with blue eyes have a single, common ancestor. A team at the University of Copenhagen have tracked down a genetic mutation which took place 6-10,000 years ago and is the cause of the eye color of all blue-eyed humans alive on the planet today." * Adding the Entire Universe to our List of Not So Old Things? Based on March 2019 findings from Hubble, Nobel laureate Adam Riess of the Space Telescope Science Institute and his co-authors in the Astrophysical Journal estimate that the universe is about a billion years younger than previously thought! Then in September 2019 in the journal Science, the age dropped precipitously to as low as 11.4 billion years! Of course, these measurements also further squeeze the canonical story of the big bang chronology with its many already existing problems including the insufficient time to "evolve" distant mature galaxies, galaxy clusters, superclusters, enormous black holes, filaments, bubbles, walls, and other superstructures. So, even though the latest estimates are still absurdly too old (Google: big bang predictions, and click on the #1 ranked article, or just go on over there to rsr.org/bb), regardless, we thought we'd plop the whole universe down on our List of Not So Old Things!   * After the Soft Tissue Discoveries, NOW Dino DNA: When a North Carolina State University paleontologist took the Tyrannosaurus Rex photos to the right of original biological material, that led to the 2016 discovery of dinosaur DNA, So far researchers have also recovered dinosaur blood vessels, collagen, osteocytes, hemoglobin, red blood cells, and various proteins. As of May 2018, twenty-six scientific journals, including Nature, Science, PNAS, PLoS One, Bone, and Journal of Vertebrate Paleontology, have confirmed the discovery of biomaterial fossils from many dinosaurs! Organisms including T. Rex, hadrosaur, titanosaur, triceratops, Lufengosaur, mosasaur, and Archaeopteryx, and many others dated, allegedly, even hundreds of millions of years old, have yielded their endogenous, still-soft biological material. See the web's most complete listing of 100+ journal papers (screenshot, left) announcing these discoveries at bflist.rsr.org and see it in layman's terms at rsr.org/soft. * Rapid Stalactites, Stalagmites, Etc.: A construction worker in 1954 left a lemonade bottle in one of Australia's famous Jenolan Caves. By 2011 it had been naturally transformed into a stalagmite (below, right). Increasing scientific knowledge is arguing for rapid cave formation (see below, Nat'l Park Service shrinks Carlsbad Caverns formation estimates from 260M years, to 10M, to 2M, to it "depends"). Likewise, examples are growing of rapid formations with typical chemical make-up (see bottle, left) of classic stalactites and stalagmites including: - in Nat'l Geo the Carlsbad Caverns stalagmite that rapidly covered a bat - the tunnel stalagmites at Tennessee's Raccoon Mountain - hundreds of stalactites beneath the Lincoln Memorial - those near Gladfelter Hall at Philadelphia's Temple University (send photos to Bob@rsr.org) - hundreds of stalactites at Australia's zinc mine at Mt. Isa.   - and those beneath Melbourne's Shrine of Remembrance. * Most Human Mutations Arose in 200 Generations: From Adam until Real Science Radio, in only 200 generations! The journal Nature reports The Recent Origin of Most Human Protein-coding Variants. As summarized by geneticist co-author Joshua Akey, "Most of the mutations that we found arose in the last 200 generations or so" (the same number previously published by biblical creationists). Another 2012 paper, in the American Journal of Physical Anthropology (Eugenie Scott's own field) on High mitochondrial mutation rates, shows that one mitochondrial DNA mutation occurs every other generation, which, as creationists point out, indicates that mtEve would have lived about 200 generations ago. That's not so old! * National Geographic's Not-So-Old Hard-Rock Canyon at Mount St. Helens: As our List of Not So Old Things (this web page) reveals, by a kneejerk reaction evolutionary scientists assign ages of tens or hundreds of thousands of years (or at least just long enough to contradict Moses' chronology in Genesis.) However, with closer study, routinely, more and more old ages get revised downward to fit the world's growing scientific knowledge. So the trend is not that more information lengthens ages, but rather, as data replaces guesswork, ages tend to shrink until they are consistent with the young-earth biblical timeframe. Consistent with this observation, the May 2000 issue of National Geographic quotes the U.S. Forest Service's scientist at Mount St. Helens, Peter Frenzen, describing the canyon on the north side of the volcano. "You'd expect a hard-rock canyon to be thousands, even hundreds of thousands of years old. But this was cut in less than a decade." And as for the volcano itself, while again, the kneejerk reaction of old-earthers would be to claim that most geologic features are hundreds of thousands or millions of years old, the atheistic National Geographic magazine acknowledges from the evidence that Mount St. Helens, the volcanic mount, is only about 4,000 years old! See below and more at rsr.org/mount-st-helens. * Mount St. Helens Dome Ten Years Old not 1.7 Million: Geochron Laboratories of Cambridge, Mass., using potassium-argon and other radiometric techniques claims the rock sample they dated, from the volcano's dome, solidified somewhere between 340,000 and 2.8 million years ago. However photographic evidence and historical reports document the dome's formation during the 1980s, just ten years prior to the samples being collected. With the age of this rock known, radiometric dating therefore gets the age 99.99999% wrong. * Devils Hole Pupfish Isolated Not for 13,000 Years But for 100: Secular scientists default to knee-jerk, older-than-Bible-age dates. However, a tiny Mojave desert fish is having none of it. Rather than having been genetically isolated from other fish for 13,000 years (which would make this small school of fish older than the Earth itself), according to a paper in the journal Nature, actual measurements of mutation rates indicate that the genetic diversity of these Pupfish could have been generated in about 100 years, give or take a few. * Polystrates like Spines and Rare Schools of Fossilized Jellyfish: Previously, seven sedimentary layers in Wisconsin had been described as taking a million years to form. And because jellyfish have no skeleton, as Charles Darwin pointed out, it is rare to find them among fossils. But now, reported in the journal Geology, a school of jellyfish fossils have been found throughout those same seven layers. So, polystrate fossils that condense the time of strata deposition from eons to hours or months, include: - Jellyfish in central Wisconsin were not deposited and fossilized over a million years but during a single event quick enough to trap a whole school. (This fossil school, therefore, taken as a unit forms a polystrate fossil.) Examples are everywhere that falsify the claims of strata deposition over millions of years. - Countless trilobites buried in astounding three dimensionality around the world are meticulously recovered from limestone, much of which is claimed to have been deposited very slowly. Contrariwise, because these specimens were buried rapidly in quickly laid down sediments, they show no evidence of greater erosion on their upper parts as compared to their lower parts. - The delicacy of radiating spine polystrates, like tadpole and jellyfish fossils, especially clearly demonstrate the rapidity of such strata deposition. - A second school of jellyfish, even though they rarely fossilized, exists in another locale with jellyfish fossils in multiple layers, in Australia's Brockman Iron Formation, constraining there too the rate of strata deposition. By the way, jellyfish are an example of evolution's big squeeze. Like galaxies e

america god university california world australia google earth science bible washington france space real young nature africa european creator writing philadelphia australian evolution japanese dna minnesota tennessee modern hawaii wisconsin bbc 3d island journal nbc birds melbourne mt chile flash mass scientists cambridge increasing pacific bang bone wyoming consistent generations iceland ohio state instant wired decades rapid nobel scientific national geographic talks remembrance genetics maui yellowstone national park copenhagen grand canyon chemical big bang nova scotia nbc news smithsonian astronomy secular daily mail telegraph arial temple university canyon groundbreaking screenshots 2m helvetica papua new guinea charles darwin 10m variants death valley geology jellyfish american journal geo nps cosmology national park service hubble north carolina state university steve austin public libraries cambridge university press missoula galapagos geographic organisms mojave diabolical forest service aig darwinian veins mount st tyrannosaurus rex new scientist lincoln memorial helens plos one galapagos islands shri inky cambrian cmi human genetics pnas live science science daily canadian arctic asiatic opals spines canadian broadcasting corporation finches rsr park service two generations 3den unintelligible spirit lake junk dna space telescope science institute carlsbad caverns fred williams archaeopteryx ctrl f 260m nature geoscience from creation vertebrate paleontology 2fjournal from darwin physical anthropology eugenie scott british geological survey 3dtrue larval 252c adam riess bob enyart ctowud raleway oligocene 3dfalse jenolan caves ctowud a6t real science radio allan w eckert kgov
The Fisheries Podcast
275 - Outdoor Adventures and Larval Fish Ecology with Bridgette Nicolosi

The Fisheries Podcast

Play Episode Listen Later Sep 8, 2024 35:27


This week Kadie catches up with Bridgette Nicolosi, a master's student at Georgia Southern University. Bridgette's research focuses primarily on larval fish ecology—an often overlooked yet critical area of fisheries research. She has experience across diverse ecosystems, from the cold mountain streams of the West to the Piedmont of the Carolinas and now the coastal plains of the Southeast, she is deeply committed to protecting fish species and the ecosystems they inhabit. Her passion for aquatic conservation drives both their academic and fieldwork, aiming to shed light on the vital role of larval fish in sustaining healthy fisheries and ecosystems. Outside of work, Bridgette is an avid nature enthusiast who finds inspiration in the outdoors. Whether hiking, camping, or crafting unique jewelry from flowers found along the way Bridgette immerses herself in the outdoors, finding balance and creativity in the environment she strives to protect.    If you'd like to get in touch with Bridgette you can find her on Instagram @bnicolosi or email her at bridgettenicolosi@gmail.com.    You can vote for Bridgette in the Ultimate Explorer Competition here and find her handmade jewelry at Land of Sky Design Co. on Etsy.    Get in touch with us! The Fisheries Podcast is on most social media platforms: @FisheriesPod Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).

The Fisheries Podcast
240-From Larval Otoliths to IDFG Fisheries Biologist with Anthony Dangora

The Fisheries Podcast

Play Episode Listen Later Dec 10, 2023 39:28


This week Kadie chats with Anthony Dangora, a regional fisheries biologist from Idaho Fish and Game (IDFG) out of McCall, Idaho. In this episode, we cover Anthony's early focus on larval otoliths and salmonids, his career path thus far, and also talk about many of the cool seasonal opportunities available out of IDFG. Check it out! Main point: Be open and willing to take on new experiences.   If you'd like to reach out to Anthony, you can find him at anthony.dangora@idfg.idaho.gov   Get in touch with us! The Fisheries Podcast is on Facebook, Twitter, and Instagram: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).

Bob Enyart Live
RSR's List of Not So Old Things

Bob Enyart Live

Play Episode Listen Later Oct 11, 2023


-- Finches Diversify in Decades, Opals Form in Months,  Man's Genetic Diversity in 200 Generations, C-14 Everywhere: Real Science Radio hosts Bob Enyart and Fred Williams present their classic program that led to the audience-favorites rsr.org/list-shows! See below and hear on today's radio program our list of Not So Old and Not So Slow Things! From opals forming in months to man's genetic diversity in 200 generations, and with carbon 14 everywhere it's not supposed to be (including in diamonds and dinosaur bones!), scientific observations fill the guys' most traditional list challenging those who claim that the earth is billions of years old. Many of these scientific finds demand a re-evaluation of supposed million and billion-year ages. * Finches Adapt in 17 Years, Not 2.3 Million: Charles Darwin's finches are claimed to have taken 2,300,000 years to diversify from an initial species blown onto the Galapagos Islands. Yet individuals from a single finch species on a U.S. Bird Reservation in the Pacific were introduced to a group of small islands 300 miles away and in at most 17 years, like Darwin's finches, they had diversified their beaks, related muscles, and behavior to fill various ecological niches. Hear about this also at rsr.org/spetner. * Opals Can Form in "A Few Months" And Don't Need 100,000 Years: A leading authority on opals, Allan W. Eckert, observed that, "scientific papers and textbooks have told that the process of opal formation requires tens of thousands of years, perhaps hundreds of thousands... Not true." A 2011 peer-reviewed paper in a geology journal from Australia, where almost all the world's opal is found, reported on the: "new timetable for opal formation involving weeks to a few months and not the hundreds of thousands of years envisaged by the conventional weathering model." (And apparently, per a 2019 report from Entomology Today, opals can even form around insects!) More knowledgeable scientists resist the uncritical, group-think insistence on false super-slow formation rates (as also for manganese nodules, gold veins, stone, petroleum, canyons and gullies, and even guts, all below). Regarding opals, Darwinian bias led geologists to long ignore possible quick action, as from microbes, as a possible explanation for these mineraloids. For both in nature and in the lab, opals form rapidly, not even in 10,000 years, but in weeks. See this also from creationists by a geologist, a paleobiochemist, and a nuclear chemist. * Finches Speciate in Two Generations vs Two Million Years for Darwin's Birds?  Darwin's finches on the Galapagos Islands are said to have diversified into 14 species over a period of two million years. But in 2017 the journal Science reported a newcomer to the Island which within two generations spawned a reproductively isolated new species. In another instance as documented by Lee Spetner, a hundred birds of the same finch species introduced to an island cluster a 1,000 kilometers from Galapagos diversified into species with the typical variations in beak sizes, etc. "If this diversification occurred in less than seventeen years," Dr. Spetner asks, "why did Darwin's Galapagos finches [as claimed by evolutionists] have to take two million years?" * Blue Eyes Originated Not So Long Ago: Not a million years ago, nor a hundred thousand years ago, but based on a peer-reviewed paper in Human Genetics, a press release at Science Daily reports that, "research shows that people with blue eyes have a single, common ancestor. A team at the University of Copenhagen have tracked down a genetic mutation which took place 6-10,000 years ago and is the cause of the eye colour of all blue-eyed humans alive on the planet today." * Adding the Entire Universe to our List of Not So Old Things? Based on March 2019 findings from Hubble, Nobel laureate Adam Riess of the Space Telescope Science Institute and his co-authors in the Astrophysical Journal estimate that the universe is about a billion years younger than previously thought! Then in September 2019 in the journal Science, the age dropped precipitiously to as low as 11.4 billion years! Of course, these measurements also further squeeze the canonical story of the big bang chronology with its many already existing problems including the insufficient time to "evolve" distant mature galaxies, galaxy clusters, superclusters, enormous black holes, filaments, bubbles, walls, and other superstructures. So, even though the latest estimates are still absurdly too old (Google: big bang predictions, and click on the #1 ranked article, or just go on over there to rsr.org/bb), regardless, we thought we'd plop the whole universe down on our List of Not So Old Things!   * After the Soft Tissue Discoveries, NOW Dino DNA: When a North Carolina State University paleontologist took the Tyrannosaurus Rex photos to the right of original biological material, that led to the 2016 discovery of dinosaur DNA, So far researchers have also recovered dinosaur blood vessels, collagen, osteocytes, hemoglobin, red blood cells, and various proteins. As of May 2018, twenty-six scientific journals, including Nature, Science, PNAS, PLoS One, Bone, and Journal of Vertebrate Paleontology, have confirmed the discovery of biomaterial fossils from many dinosaurs! Organisms including T. Rex, hadrosaur, titanosaur, triceratops, Lufengosaur, mosasaur, and Archaeopteryx, and many others dated, allegedly, even hundreds of millions of years old, have yielded their endogenous, still-soft biological material. See the web's most complete listing of 100+ journal papers (screenshot, left) announcing these discoveries at bflist.rsr.org and see it in layman's terms at rsr.org/soft. * Rapid Stalactites, Stalagmites, Etc.: A construction worker in 1954 left a lemonade bottle in one of Australia's famous Jenolan Caves. By 2011 it had been naturally transformed into a stalagmite (below, right). Increasing scientific knowledge is arguing for rapid cave formation (see below, Nat'l Park Service shrinks Carlsbad Caverns formation estimates from 260M years, to 10M, to 2M, to it "depends"). Likewise, examples are growing of rapid formations with typical chemical make-up (see bottle, left) of classic stalactites and stalagmites including:- in Nat'l Geo the Carlsbad Caverns stalagmite that rapidly covered a bat - the tunnel stalagmites at Tennessee's Raccoon Mountain - hundreds of stalactites beneath the Lincoln Memorial - those near Gladfelter Hall at Philadelphia's Temple University (send photos to Bob@rsr.org) - hundreds of stalactites at Australia's zinc mine at Mt. Isa.   - and those beneath Melbourne's Shrine of Remembrance. * Most Human Mutations Arose in 200 Generations: From Adam until Real Science Radio, in only 200 generations! The journal Nature reports The Recent Origin of Most Human Protein-coding Variants. As summarized by geneticist co-author Joshua Akey, "Most of the mutations that we found arose in the last 200 generations or so" (the same number previously published by biblical creationists). Another 2012 paper, in the American Journal of Physical Anthropology (Eugenie Scott's own field) on High mitochondrial mutation rates, shows that one mitochondrial DNA mutation occurs every other generation, which, as creationists point out, indicates that mtEve would have lived about 200 generations ago. That's not so old! * National Geographic's Not-So-Old Hard-Rock Canyon at Mount St. Helens: As our List of Not So Old Things (this web page) reveals, by a kneejerk reaction evolutionary scientists assign ages of tens or hundreds of thousands of years (or at least just long enough to contradict Moses' chronology in Genesis.) However, with closer study, routinely, more and more old ages get revised downward to fit the world's growing scientific knowledge. So the trend is not that more information lengthens ages, but rather, as data replaces guesswork, ages tend to shrink until they are consistent with the young-earth biblical timeframe. Consistent with this observation, the May 2000 issue of National Geographic quotes the U.S. Forest Service's scientist at Mount St. Helens, Peter Frenzen, describing the canyon on the north side of the volcano. "You'd expect a hard-rock canyon to be thousands, even hundreds of thousands of years old. But this was cut in less than a decade." And as for the volcano itself, while again, the kneejerk reaction of old-earthers would be to claim that most geologic features are hundreds of thousands or millions of years old, the atheistic National Geographic magazine acknowledges from the evidence that Mount St. Helens, the volcanic mount, is only about 4,000 years old! See below and more at rsr.org/mount-st-helens. * Mount St. Helens Dome Ten Years Old not 1.7 Million: Geochron Laboratories of Cambridge, Mass., using potassium-argon and other radiometric techniques claims the rock sample they dated, from the volcano's dome, solidified somewhere between 340,000 and 2.8 million years ago. However photographic evidence and historical reports document the dome's formation during the 1980s, just ten years prior to the samples being collected. With the age of this rock known, radiometric dating therefore gets the age 99.99999% wrong. * Devils Hole Pupfish Isolated Not for 13,000 Years But for 100: Secular scientists default to knee-jerk, older-than-Bible-age dates. However, a tiny Mojave desert fish is having none of it. Rather than having been genetically isolated from other fish for 13,000 years (which would make this small school of fish older than the Earth itself), according to a paper in the journal Nature, actual measurements of mutation rates indicate that the genetic diversity of these Pupfish could have been generated in about 100 years, give or take a few. * Polystrates like Spines and Rare Schools of Fossilized Jellyfish: Previously, seven sedimentary layers in Wisconsin had been described as taking a million years to form. And because jellyfish have no skeleton, as Charles Darwin pointed out, it is rare to find them among fossils. But now, reported in the journal Geology, a school of jellyfish fossils have been found throughout those same seven layers. So, polystrate fossils that condense the time of strata deposition from eons to hours or months, include: - Jellyfish in central Wisconsin were not deposited and fossilized over a million years but during a single event quick enough to trap a whole school. (This fossil school, therefore, taken as a unit forms a polystrate fossil.) Examples are everywhere that falsify the claims of strata deposition over millions of years. - Countless trilobites buried in astounding three dimensionality around the world are meticulously recovered from limestone, much of which is claimed to have been deposited very slowly. Contrariwise, because these specimens were buried rapidly in quickly laid down sediments, they show no evidence of greater erosion on their upper parts as compared to their lower parts.- The delicacy of radiating spine polystrates, like tadpole and jellyfish fossils, especially clearly demonstrate the rapidity of such strata deposition. - A second school of jellyfish, even though they rarely fossilized, exists in another locale with jellyfish fossils in multiple layers, in Australia's Brockman Iron Formation, constraining there too the rate of strata deposition. By the way, jellyfish are an example of evolution's big squeeze. Like galaxies evolving too quickly, galaxy clusters, and even human feet (which, like Mummy DNA, challenge the Out of Africa paradigm), jellyfish have gotten into the act squeezing evolution's timeline, here by 200 million years when they were found in strata allegedly a half-a-billion years old. Other examples, ironically referred to as Medusoid Problematica, are even found in pre-Cambrian strata. - 171 tadpoles of the same species buried in diatoms. - Leaves buried vertically through single-celled diatoms powerfully refute the claimed super-slow deposition of diatomaceous rock. - Many fossils, including a Mesosaur, have been buried in multiple "varve" layers, which are claimed to be annual depositions, yet they show no erosional patterns that would indicate gradual burial (as they claim, absurdly, over even thousands of years). - A single whale skeleton preserved in California in dozens of layers of diatom deposits thus forming a polystrate fossil. - 40 whales buried in the desert in Chile. "What's really interesting is that this didn't just happen once," said Smithsonian evolutionist Dr. Nick Pyenson. It happened four times." Why's that? Because "the fossil site has at least four layers", to which Real Science Radio's Bob Enyart replies: "Ha ha ha ha ha ha ha ha ha ha ha", with RSR co-host Fred Williams thoughtfully adding, "Ha ha!" * Polystrate Trees: Examples abound around the world of polystrate trees:  - Yellowstone's petrified polystrate forest (with the NPS exhibit sign removed; see below) with successive layers of rootless trees demonstrating the rapid deposition of fifty layers of strata. - A similarly formed polystrate fossil forest in France demonstrating the rapid deposition of a dozen strata. - In a thousand locations including famously the Fossil Cliffs of Joggins, Nova Scotia, polystrate fossils such as trees span many strata. - These trees lack erosion: Not only should such fossils, generally speaking, not even exist, but polystrates including trees typically show no evidence of erosion increasing with height. All of this powerfully disproves the claim that the layers were deposited slowly over thousands or millions of years. In the experience of your RSR radio hosts, evolutionists commonly respond to this hard evidence with mocking. See CRSQ June 2006, ICR Impact #316, and RSR 8-11-06 at KGOV.com. * Yellowstone Petrified Trees Sign Removed: The National Park Service removed their incorrect sign (see left and more). The NPS had claimed that in dozens of different strata over a 40-square mile area, many petrified trees were still standing where they had grown. The NPS eventually removed the sign partly because those petrified trees had no root systems, which they would have had if they had grown there. Instead, the trees of this "fossil forest" have roots that are abruptly broken off two or three feet from their trunks. If these mature trees actually had been remnants of sequential forests that had grown up in strata layer on top of strata layer, 27 times on Specimen Ridge (and 50 times at Specimen Creek), such a natural history implies passage of more time than permitted by biblical chronology. So, don't trust the National Park Service on historical science because they're wrong on the age of the Earth. * Wood Petrifies Quickly: Not surprisingly, by the common evolutionary knee-jerk claim of deep time, "several researchers believe that several millions of years are necessary for the complete formation of silicified wood". Our List of Not So Old and Not So Slow Things includes the work of five Japanese scientists who proved creationist research and published their results in the peer-reviewed journal Sedimentary Geology showing that wood can and does petrify rapidly. Modern wood significantly petrified in 36 years these researchers concluded that wood buried in strata could have been petrified in "a fairly short period of time, in the order of several tens to hundreds of years." * The Scablands: The primary surface features of the Scablands, which cover thousands of square miles of eastern Washington, were long believed to have formed gradually. Yet, against the determined claims of uniformitarian geologists, there is now overwhelming evidence as presented even in a NOVA TV program that the primary features of the Scablands formed rapidly from a catastrophic breach of Lake Missoula causing a massive regional flood. Of course evolutionary geologists still argue that the landscape was formed over tens of thousands of years, now by claiming there must have been a hundred Missoula floods. However, the evidence that there was Only One Lake Missoula Flood has been powerfully reinforced by a University of Colorado Ph.D. thesis. So the Scablands itself is no longer available to old-earthers as de facto evidence for the passage of millions of years. * The Heart Mountain Detachment: in Wyoming just east of Yellowstone, this mountain did not break apart slowly by uniformitarian processes but in only about half-an-hour as widely reported including in the evolutionist LiveScience.com, "Land Speed Record: Mountain Moves 62 Miles in 30 Minutes." The evidence indicates that this mountain of rock covering 425 square miles rapidly broke into 50 pieces and slid apart over an area of more than 1,300 square miles in a biblical, not a "geological," timeframe.  * "150 Million" year-old Squid Ink Not Decomposed: This still-writable ink had dehydrated but had not decomposed! The British Geological Survey's Dr. Phil Wilby, who excavated the fossil, said, "It is difficult to imagine how you can have something as soft and sloppy as an ink sac fossilised in three dimensions, still black, and inside a rock that is 150 million years old." And the Daily Mail states that, "the black ink was of exactly the same structure as that of today's version", just desiccated. And Wilby added, "Normally you would find only the hard parts like the shell and bones fossilised but... these creatures... can be dissected as if they are living animals, you can see the muscle fibres and cells. It is difficult to imagine... The structure is similar to ink from a modern squid so we can write with it..." Why is this difficult for evolutionists to imagine? Because as Dr. Carl Wieland writes, "Chemical structures 'fall apart' all by themselves over time due to the randomizing effects of molecular motion."Decades ago Bob Enyart broadcast a geology program about Mount St. Helens' catastrophic destruction of forests and the hydraulic transportation and upright deposition of trees. Later, Bob met the chief ranger from Haleakala National Park on Hawaii's island of Maui, Mark Tanaka-Sanders. The ranger agreed to correspond with his colleague at Yellowstone to urge him to have the sign removed. Thankfully, it was then removed. (See also AIG, CMI, and all the original Yellowstone exhibit photos.) Groundbreaking research conducted by creation geologist Dr. Steve Austin in Spirit Lake after Mount St. Helens eruption provided a modern-day analog to the formation of Yellowstone fossil forest. A steam blast from that volcano blew over tens of thousands of trees leaving them without attached roots. Many thousands of those trees were floating upright in Spirit Lake, and began sinking at varying rates into rapidly and sporadically deposited sediments. Once Yellowstone's successive forest interpretation was falsified (though like with junk DNA, it's too big to fail, so many atheists and others still cling to it), the erroneous sign was removed. * Asiatic vs. European Honeybees: These two populations of bees have been separated supposedly for seven million years. A researcher decided to put the two together to see what would happen. What we should have here is a failure to communicate that would have resulted after their "language" evolved over millions of years. However, European and Asiatic honeybees are still able to communicate, putting into doubt the evolutionary claim that they were separated over "geologic periods." For more, see the Public Library of Science, Asiatic Honeybees Can Understand Dance Language of European Honeybees. (Oh yeah, and why don't fossils of poorly-formed honeycombs exist, from the millions of years before the bees and natural selection finally got the design right? Ha! Because they don't exist! :) Nautiloid proves rapid limestone formation. * Remember the Nautiloids: In the Grand Canyon there is a limestone layer averaging seven feet thick that runs the 277 miles of the canyon (and beyond) that covers hundreds of square miles and contains an average of one nautiloid fossil per square meter. Along with many other dead creatures in this one particular layer, 15% of these nautiloids were killed and then fossilized standing on their heads. Yes, vertically. They were caught in such an intense and rapid catastrophic flow that gravity was not able to cause all of their dead carcasses to fall over on their sides. Famed Mount St. Helens geologist Steve Austin is also the world's leading expert on nautiloid fossils and has worked in the canyon and presented his findings to the park's rangers at the invitation of National Park Service officials. Austin points out, as is true of many of the world's mass fossil graveyards, that this enormous nautiloid deposition provides indisputable proof of the extremely rapid formation of a significant layer of limestone near the bottom of the canyon, a layer like the others we've been told about, that allegedly formed at the bottom of a calm and placid sea with slow and gradual sedimentation. But a million nautiloids, standing on their heads, literally, would beg to differ. At our sister stie, RSR provides the relevant Geologic Society of America abstract, links, and video. *  Now It's Allegedly Two Million Year-Old Leaves: "When we started pulling leaves out of the soil, that was surreal, to know that it's millions of years old..." sur-re-al: adjective: a bizarre mix of fact and fantasy. In this case, the leaves are the facts. Earth scientists from Ohio State and the University of Minnesota say that wood and leaves they found in the Canadian Arctic are at least two million years old, and perhaps more than ten million years old, even though the leaves are just dry and crumbly and the wood still burns! * Gold Precipitates in Veins in Less than a Second: After geologists submitted for decades to the assumption that each layer of gold would deposit at the alleged super slow rates of geologic process, the journal Nature Geoscience reports that each layer of deposition can occur within a few tenths of a second. Meanwhile, at the Lihir gold deposit in Papua New Guinea, evolutionists assumed the more than 20 million ounces of gold in the Lihir reserve took millions of years to deposit, but as reported in the journal Science, geologists can now demonstrate that the deposit could have formed in thousands of years, or far more quickly! Iceland's not-so-old Surtsey Island looks ancient. * Surtsey Island, Iceland: Of the volcanic island that formed in 1963, New Scientist reported in 2007 about Surtsey that "geographers... marvel that canyons, gullies and other land features that typically take tens of thousands or millions of years to form were created in less than a decade." Yes. And Sigurdur Thorarinsson, Iceland's chief  geologist, wrote in the months after Surtsey formed, "that the time scale," he had been trained "to attach to geological developments is misleading." [For what is said to] take thousands of years... the same development may take a few weeks or even days here [including to form] a landscape... so varied and mature that it was almost beyond belief... wide sandy beaches and precipitous crags... gravel banks and lagoons, impressive cliffs… hollows, glens and soft undulating land... fractures and faultscarps, channels and screes… confounded by what met your eye... boulders worn by the surf, some of which were almost round... -Iceland's chief geologist * The Palouse River Gorge: In the southeast of Washington State, the Palouse River Gorge is one of many features formed rapidly by 500 cubic miles of water catastrophically released with the breaching of a natural dam in the Lake Missoula Flood (which gouged out the Scablands as described above). So, hard rock can be breached and eroded rapidly. * Leaf Shapes Identical for 190 Million Years?  From Berkley.edu, "Ginkgo biloba... dates back to... about 190 million years ago... fossilized leaf material from the Tertiary species Ginkgo adiantoides is considered similar or even identical to that produced by modern Ginkgo biloba trees... virtually indistinguishable..." The literature describes leaf shapes as "spectacularly diverse" sometimes within a species but especially across the plant kingdom. Because all kinds of plants survive with all kinds of different leaf shapes, the conservation of a species retaining a single shape over alleged deep time is a telling issue. Darwin's theory is undermined by the unchanging shape over millions of years of a species' leaf shape. This lack of change, stasis in what should be an easily morphable plant trait, supports the broader conclusion that chimp-like creatures did not become human beings and all the other ambitious evolutionary creation of new kinds are simply imagined. (Ginkgo adiantoides and biloba are actually the same species. Wikipedia states, "It is doubtful whether the Northern Hemisphere fossil species of Ginkgo can be reliably distinguished." For oftentimes, as documented by Dr. Carl Werner in his Evolution: The Grand Experiment series, paleontogists falsely speciate identical specimens, giving different species names, even different genus names, to the fossil and living animals that appear identical.) * Box Canyon, Idaho: Geologists now think Box Canyon in Idaho, USA, was carved by a catastrophic flood and not slowly over millions of years with 1) huge plunge pools formed by waterfalls; 2) the almost complete removal of large basalt boulders from the canyon; 3) an eroded notch on the plateau at the top of the canyon; and 4) water scour marks on the basalt plateau leading to the canyon. Scientists calculate that the flood was so large that it could have eroded the whole canyon in as little as 35 days. See the journal Science, Formation of Box Canyon, Idaho, by Megaflood, and the Journal of Creation, and Creation Magazine. * Manganese Nodules Rapid Formation: Allegedly, as claimed at the Wikipedia entry from 2005 through 2021: "Nodule growth is one of the slowest of all geological phenomena – in the order of a centimeter over several million years." Wow, that would be slow! And a Texas A&M Marine Sciences technical slide presentation says, “They grow very slowly (mm/million years) and can be tens of millions of years old", with RWU's oceanography textbook also putting it at "0.001 mm per thousand years." But according to a World Almanac documentary they have formed "around beer cans," said marine geologist Dr. John Yates in the 1997 video Universe Beneath the Sea: The Next Frontier. There are also reports of manganese nodules forming around ships sunk in the First World War. See more at at youngearth.com, at TOL, in the print edition of the Journal of Creation, and in this typical forum discussion with atheists (at the Chicago Cubs forum no less :). * "6,000 year-old" Mitochondrial Eve: As the Bible calls "Eve... the mother of all living" (Gen. 3:20), genetic researchers have named the one woman from whom all humans have descended "Mitochondrial Eve." But in a scientific attempt to date her existence, they openly admit that they included chimpanzee DNA in their analysis in order to get what they viewed as a reasonably old date of 200,000 years ago (which is still surprisingly recent from their perspective, but old enough not to strain Darwinian theory too much). But then as widely reported including by Science magazine, when they dropped the chimp data and used only actual human mutation rates, that process determined that Eve lived only six thousand years ago! In Ann Gibbon's Science article, "Calibrating the Mitochondrial Clock," rather than again using circular reasoning by assuming their conclusion (that humans evolved from ape-like creatures), they performed their calculations using actual measured mutation rates. This peer-reviewed journal then reported that if these rates have been constant, "mitochondrial Eve… would be a mere 6000 years old." See also the journal Nature and creation.com's "A shrinking date for Eve," and Walt Brown's assessment. Expectedly though, evolutionists have found a way to reject their own unbiased finding (the conclusion contrary to their self-interest) by returning to their original method of using circular reasoning, as reported in the American Journal of Human Genetics, "calibrating against recent evidence for the divergence time of humans and chimpanzees,"  to reset their mitochondrial clock back to 200,000 years. * Even Younger Y-Chromosomal Adam: (Although he should be called, "Y-Chromosomal Noah.") While we inherit our mtDNA only from our mothers, only men have a Y chromosome (which incidentally genetically disproves the claim that the fetus is "part of the woman's body," since the little boy's y chromosome could never be part of mom's body). Based on documented mutation rates on and the extraordinary lack of mutational differences in this specifically male DNA, the Y-chromosomal Adam would have lived only a few thousand years ago! (He's significantly younger than mtEve because of the genetic bottleneck of the global flood.) Yet while the Darwinian camp wrongly claimed for decades that humans were 98% genetically similar to chimps, secular scientists today, using the same type of calculation only more accurately, have unintentionally documented that chimps are about as far genetically from what makes a human being a male, as mankind itself is from sponges! Geneticists have found now that sponges are 70% the same as humans genetically, and separately, that human and chimp Y chromosomes are  "horrendously" 30%

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Virginia Water Radio
Episode 657 (6-12-23): American Bullfrog

Virginia Water Radio

Play Episode Listen Later May 25, 2023


CLICK HERE to listen to episode audio (4:05).Sections below are the following: Transcript of Audio Audio Notes and Acknowledgments ImagesExtra InformationSources Related Water Radio Episodes For Virginia Teachers (Relevant SOLs, etc.). Unless otherwise noted, all Web addresses mentioned were functional as of 5-24-23. TRANSCRIPT OF AUDIO From the Cumberland Gap to the Atlantic Ocean, this is Virginia Water Radio for the weeks of June 12 and June 19, 2023.  This is a revised version of an episode from August 2011. MUSIC – ~12 sec – instrumental. That's part of “Frog Legs Rag,” composed in 1906 by James Scott of Missouri.  It opens an episode on a frog known for its large size, deep voice, and big appetite.  Have a listen for about 15 seconds to the following mystery sounds, and see if you know what's making the croaks.  And here's a hint: what would you get if you combined a male hoofed mammal with a jumping amphibian? SOUNDS - ~16 sec If you guessed a bullfrog, you're right!  You heard calls of the American Bullfrog, the largest native frog in North America, with a length typically of 4 to 6 inches and sometimes as much as 8 inches.  This large size helps account for the males' deep mating call, often described as “jug-o-rum” and audible over considerable distances.  Bullfrogs are found all over Virginia in ponds, lakes, and still-water sections of streams.  These kinds of permanent water bodies with shallow water and vegetation are needed for mating, for the laying of thousands of eggs in sheets on the water surface, and for the tadpoles' development period of one to two years.  Bullfrog tadpoles feed mostly on algae, aquatic plants, and insects or other invertebrates, while adults feed on insects, crayfish, other frogs, snakes, small mammals, and—according to one source—“anything that is moving and that they can at least partially swallow”.  In turn, bullfrogs are prey for various wildlife species and in some states are a game species for humans.  The American Bullfrog's native range is from the East Coast to the Great Plains.  Some of these native populations have declined due to habitat loss, water pollution, and pesticides, while the species' range has expanded through introductions into several western states. Thanks to the U.S. Geological Survey for providing the American Bullfrog recording.  Thanks also to Free Music Archive for providing access to a public domain version of “Frog Legs Rag,” and we close with another 20 seconds of that music. MUSIC – ~22 sec – instrumental. SHIP'S BELL Virginia Water Radio is produced by the Virginia Water Resources Research Center, part of Virginia Tech's College of Natural Resources and Environment.  For more Virginia water sounds, music, or information, visit us online at virginiawaterradio.org, or call the Water Center at (540) 231-5624.  Thanks to Ben Cosgrove for his version of “Shenandoah” to open and close this episode.  In Blacksburg, I'm Alan Raflo, thanking you for listening, and wishing you health, wisdom, and good water. AUDIO NOTES AND ACKNOWLEDGEMENTS This Virginia Water Radio episode revises and replaces Episode 74, 8-8-11. The sounds of the American Bullfrog heard in this episode were from the U.S. Geological Survey Upper Midwest Environmental Sciences Center, online at https://www.umesc.usgs.gov/terrestrial/amphibians/armi/frog_calls.html. “Frog Legs Rag” was composed by James Scott (1885-1938) in 1906.  The version heard in this episode was from 1906 piano roll, accessed from Free Music Archive, online at https://freemusicarchive.org/music/James_Scott/Frog_Legs_Ragtime_Era_Favorites/01_-_james_scott_-_frog_legs_rag/.  The version was published as part of the 2010 album “Frog Legs: Ragtime Era Favorites,” online at https://freemusicarchive.org/music/Various_Artists_Kazoomzoom/Frog_Legs_Ragtime_Era_Favorites.  The site indicates that the “Frog Legs Rag” piano roll version is provided for use under Creative Commons Public Domain Mark 1.0.  More information about “Frog Legs Rag” and about James Scott is available from Gonzaga University, online at https://digital.gonzaga.edu/digital/collection/p15486coll3/id/12932/, and from the Library of Congress online at https://www.loc.gov/item/ihas.200035819/. Click here if you'd like to hear the full version (2 min./22 sec.) of the “Shenandoah” arrangement/performance by Ben Cosgrove that opens and closes this episode.  More information about Mr. Cosgrove is available online at http://www.bencosgrove.com. IMAGES American Bullfrog photographed in Alexandria, Va., May 21, 2023.  Photo by Caroline Quinn, made available on iNaturalist at https://www.inaturalist.org/observations/163103785 (as of 5-25-23) for use under Creative Commons license “Attribution—Non-commercial 4.0 International (CC BY-NC 4.0).”  Information about this Creative Commons license is available online at https://creativecommons.org/licenses/by-nc/4.0/.American Bullfrog at Gavins Point National Fish Hatchery at Yukton, South Dakota, July 31, 2018.  Photo by Sam Stukel, made available for public use by the U.S. Fish and Wildlife Service's National Digital Library, online at http://digitalmedia.fws.gov; specific URL for the photo was https://digitalmedia.fws.gov/digital/collection/natdiglib/id/31921/rec/1, as of 5-25-23. EXTRA INFORMATION ABOUT THE AMERICAN BULLFROG The scientific name of the American Bullfrog is Lithobates catesbianus; formerly, the scientific name was Rana catesbiana. The following information is quoted from the Virginia Department of Wildlife Resources (formerly Department of Game and Inland Fisheries), “Fish and Wildlife Information Service/American Bullfrog Life History,” online at https://services.dwr.virginia.gov/fwis/booklet.html?Menu=_.Life+History&bova=020004&version=19500, and “Food Habits,” online at https://services.dwr.virginia.gov/fwis/booklet.html?Menu=_.Food+Habits&bova=020004&version=19500. Physical Description This is the largest native North American frog species in Virginia.  Lengths range from 85-200mm (3.5-6 in).  ...Males are generally smaller than females, have a yellowish wash on their throat, and a larger tympanum [eardrum], thumb, and forearm.  The male breeding call is a deep, full series of notes best described as “jug-a-rum.”... Reproduction This species breeds from the late spring to early fall.  Males are territorial.  Mating success is influenced by the quality of the territory. ... Females lay one or two clutches per season.  Average clutch size is 12,000 eggs.  Clutches are laid in a film on the water surface.  Eggs hatch in approximately 5 days.  Tadpoles can be very large, 125-150 mm.  Metamorphosis usually takes 1 year [and] larvae will overwinter in ponds.  Larval survivorship is

music american relationships university game earth education guide college water state change land living research zoom tech food government north america environment normal natural fish va missouri humans dark rain web ocean animals snow behavior experiments weather citizens agency stream richmond east coast priority north american frogs plants environmental biology average native dynamic bay eggs images defending grade bio south dakota menu processes signature pond species virginia tech chapel hill atlantic ocean accent arial females toad library of congress life sciences metamorphosis males adaptations compatibility colorful reproduction populations ls sections aquatic watershed times new roman mating zoology chesapeake organisms reptiles free music archive great plains policymakers salamanders taxonomy acknowledgment calibri shenandoah toads cosgrove amphibians gonzaga university lengths north carolina press sols bullfrogs geological survey stormwater virginia department cambria math tadpoles james scott style definitions inaturalist ar sa worddocument crayfish saveifxmlinvalid bmp ignoremixedcontent clutches punctuationkerning breakwrappedtables dontgrowautofit trackmoves trackformatting lidthemeother snaptogridincell wraptextwithpunct useasianbreakrules latentstyles deflockedstate lidthemeasian mathpr latentstylecount centergroup msonormaltable subsup undovr donotpromoteqf mathfont brkbin brkbinsub smallfrac dispdef lmargin rmargin defjc wrapindent intlim narylim defunhidewhenused defsemihidden defqformat defpriority lsdexception locked qformat semihidden unhidewhenused reay latentstyles table normal herpetology life history name revision name bibliography grades k wildlife resources biotic cumberland gap national aquarium international cc by nc light accent dark accent colorful accent name closing name message header name salutation name document map name normal web inland fisheries larval michigan museum ben cosgrove audio notes tmdl msobodytext 20image donotshowrevisions virginia standards
NatureNotes with Rudy Mancke
Larval food plants

NatureNotes with Rudy Mancke

Play Episode Listen Later May 2, 2023 1:00


Zebra swallowtail, Eastern swallowtail, spice bush swallowtail, black swallowtail, palomides swallowtail - all of each of these species of butterfly has its primary, of not sole, larval food plant.

PaperPlayer biorxiv neuroscience
Magnetic actuation of otoliths allows behavioral and brain-wide neuronal exploration of vestibulo-motor processing in larval zebrafish.

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Apr 19, 2023


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2023.04.18.537408v1?rss=1 Authors: Beiza-Canelo, N., Moulle, H., Pujol, T., Panier, T., Migault, G., Le Goc, G., Tapie, P., Desprat, N., Straka, H., Debregeas, G., Bormuth, V. Abstract: The vestibular system in the inner ear plays a central role in sensorimotor control by informing the brain about the orientation and acceleration of the head. However, most experiments in neurophysiology are performed using head-fixed configurations, depriving animals of vestibular inputs. To overcome this limitation, we decorated the utricular otolith of the vestibular system in larval zebrafish with paramagnetic nanoparticles. This procedure effectively endowed the animal with magneto-sensitive capacities: applied magnetic field gradients induced forces on the otoliths resulting in robust behavioral responses comparable to that evoked by rotating the animal by up to 25{degrees}. We recorded the whole-brain neuronal response to this fictive motion stimulation using light-sheet functional imaging. Experiments performed in unilaterally injected fish revealed the activation of a commissural inhibition between the brain hemispheres. This magnetic-based stimulation technique for larval zebrafish opens new perspectives to functionally dissect the neural circuits underlying vestibular processing and to develop multisensory virtual environments, including vestibular feedback. Copy rights belong to original authors. Visit the link for more info Podcast created by Paper Player, LLC

Spectrum Autism Research
Wiring map reveals how larval fruit fly brain converts sensory signals to movement

Spectrum Autism Research

Play Episode Listen Later Mar 20, 2023 5:16


The map diagrams more than half a million neuronal connections in the first complete connectome of Drosophila and holds clues about which brain architectures best support learning.

Spectrum Autism Research
Wiring map reveals how larval fruit fly brain converts sensory signals to movement

Spectrum Autism Research

Play Episode Listen Later Mar 20, 2023 5:16


The map diagrams more than half a million neuronal connections in the first complete connectome of Drosophila and holds clues about which brain architectures best support learning.

PaperPlayer biorxiv neuroscience
The nature and origin of synaptic inputs to vestibulospinal neurons in the larval zebrafish

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Mar 16, 2023


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2023.03.15.532859v1?rss=1 Authors: Hamling, K. R., Harmon, K., Schoppik, D. Abstract: Vestibulospinal neurons integrate sensed imbalance to regulate postural reflexes. As an evolutionarily-conserved neural population, understanding their synaptic and circuit-level properties can offer insight into vertebrate anti-gravity reflexes. Motivated by recent work, we set out to verify and extend the characterization of vestibulospinal neurons in the larval zebrafish. Using current clamp recordings together with stimulation, we observed that larval zebrafish vestibulospinal neurons are silent at rest, yet capable of sustained spiking following depolarization. Neurons responded systematically to a vestibular stimulus (translation in the dark); responses were abolished after chronic or acute loss of the utricular otolith. Voltage clamp recordings at rest revealed strong excitatory inputs with a characteristic multimodal distribution of amplitudes, as well as strong inhibitory inputs. Excitatory inputs within a particular mode (amplitude range) routinely violated refractory period criteria and exhibited complex sensory tuning, suggesting a non-unitary origin. Next, using a unilateral loss-of-function approach, we characterized the source of vestibular inputs to vestibulospinal neurons from each ear. We observed systematic loss of high-amplitude excitatory inputs after utricular lesions ipsilateral, but not contralateral to the recorded vestibulospinal neuron. In contrast, while some neurons had decreased inhibitory inputs after either ipsilateral or contralateral lesions, there were no systematic changes across the population of recorded neurons. We conclude that imbalance sensed by the utricular otolith shapes the responses of larval zebrafish vestibulospinal neurons through both excitatory and inhibitory inputs. Our findings expand our understanding of how a vertebrate model, the larval zebrafish, might use vestibulospinal input to stabilize posture. More broadly, when compared to recordings in other vertebrates, our data speak to conserved origins of vestibulospinal synaptic input. Copy rights belong to original authors. Visit the link for more info Podcast created by Paper Player, LLC

Enfermagem Informa
Ep. 119 - Terapia Larval, a visão do paciente

Enfermagem Informa

Play Episode Listen Later Mar 6, 2023 52:57


Nesse episódio a enfermeira Simone Maria da Silva, nos conta sobre seu trabalho desenvolvido dentro da terapia larval, junto aos pacientes que receberam a terapia larval como tratamento. Para conhecer a pesquisa da Simone, acesse o artigo na integra: https://www.researchgate.net/publication/347663405_Terapia_larval_sob_a_otica_do_paciente Para conhecer mais sobre a Simone, a siga no Instagram: @enfdasilvasimone E não deixe de comentar no nosso Instagram, o que achou desse episódio: @enfermagem_informa

Salty talks: Conversations on Sustainable Aquaculture in Maine
Larval Nutrition: Feeding some of the smallest vertebrates on earth

Salty talks: Conversations on Sustainable Aquaculture in Maine

Play Episode Listen Later Feb 14, 2023 44:41 Transcription Available


Join me as Matt Hawkyard, Assistant Extension Professor and Finfish Nutrition Specialist from the University of Maine discusses the importance of growing finfish in the United States, and the research that goes into feeding these tiny vertebrates!

PaperPlayer biorxiv neuroscience
Neuromuscular Basis of Drosophila larval escape behavior

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Feb 3, 2023


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2023.02.01.526733v1?rss=1 Authors: Cooney, P. C., Li, W., Huang, Y., Hormigo, R., Tabachnik, T., Hillman, E. M. C., Grueber, W. B., Zarin, A. A. Abstract: When threatened by dangerous or harmful stimuli, animals engage in diverse forms of rapid escape behavior. In Drosophila larvae, escape behavior is characterized by C-shaped bending and lateral rolling, followed by rapid forward crawling. The sensory circuitry that promotes escape has been extensively characterized, but the motor programs underlying escape are unknown. Here, we characterize the neuromuscular basis of escape. We use high-speed, volumetric, Swept Confocally-Aligned Planar Excitation (SCAPE) microscopy to image muscle activity during larval rolling. Unlike the sequential peristaltic muscle contractions from segment to segment that underlie crawling, muscle activity progresses in a circumferential sequence during bending and rolling. Certain muscle subgroups show functional antagonism during bending and rolling. We use EM connectome data to identify premotor to motor connectivity patterns that could drive rolling behavior and test the necessity of specific groups of motor neurons in rolling using neural silencing approaches. Our data reveal body-wide muscle activity patterns and putative premotor circuit organization for escape. Copy rights belong to original authors. Visit the link for more info Podcast created by Paper Player, LLC

PaperPlayer biorxiv neuroscience
Rewarding capacity of optogenetically activating a giant GABAergic central-brain interneuron in larval Drosophila

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Dec 19, 2022


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2022.12.19.521052v1?rss=1 Authors: Mancini, N., Thoener, J., Tafani, E., Pauls, D., Mayseless, O., Strauch, M., Eichler, K., Champion, A., Kobler, O., Weber, D., Sen, E., Weiglein, A., Hartenstein, V., Thum, A. S., Rohwedder, A., Schleyer, M., Gerber, B. Abstract: Larvae of the fruit fly Drosophila melanogaster are a powerful study case for understanding the neural circuits underlying behavior. Indeed, the numerical simplicity of the larval brain has permitted the reconstruction of its synaptic connectome, and genetic tools for manipulating single, identified neurons allow neural circuit function to be investigated with relative ease and precision. We focus on one of the most complex neurons in the brain of the larva (of either sex), the GABAergic anterior paired lateral neuron (APL). Using behavioral and connectomic analyses, optogenetics, Ca2+ imaging and pharmacology, we study how APL affects associative olfactory memory. We first provide a detailed account of the structure, regional polarity, connectivity, and metamorphic development of APL, and further confirm that optogenetic activation of APL has an inhibiting effect on its main targets, the mushroom body Kenyon cells. All these findings are consistent with the previously identified function of APL in the sparsening of sensory representations. To our surprise, however, we found that optogenetically activating APL can also have a strong rewarding effect. Specifically, APL activation together with odor presentation establishes an odor-specific, appetitive, associative short-term memory, whereas naive olfactory behavior remains unaffected. An acute, systemic inhibition of dopamine synthesis as well as an ablation of the dopaminergic pPAM neurons impair reward learning through APL activation. Our findings provide a study case of complex circuit function in a numerically simple brain, and suggest a previously unrecognized capacity of central-brain GABAergic neurons to engage in dopaminergic reinforcement. Copy rights belong to original authors. Visit the link for more info Podcast created by Paper Player, LLC

PaperPlayer biorxiv neuroscience
Mushroom body output neurons MBONa1/a2 define an odor intensity channel that regulates behavioral odor discrimination learning in larval Drosophila

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Dec 15, 2022


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2022.12.14.518530v1?rss=1 Authors: Mohamed, A., Malekou, I., Sim, T., O'Kane, C. J., Maait, Y., Scullion, B., Masuda-Nakagawa, L. M. Abstract: The sensitivity of animals to sensory input must be regulated to ensure that signals are detected and also discriminable. However, how circuits regulate the dynamic range of sensitivity to sensory stimuli is not well understood. A given odor is represented in the insect mushroom bodies (MBs) by sparse combinatorial coding by Kenyon cells (KCs), forming an odor quality representation. To address how intensity of sensory stimuli is processed at the level of the MB input region, the calyx, we characterized a set of novel mushroom body output neurons that respond only to high odor concentrations. We show that a pair of MB calyx output neurons, MBONa1/2, are postsynaptic in the MB calyx, where they receive extensive synaptic inputs from KC dendrites, the inhibitory feedback neuron APL, and octopaminergic sVUM1 neurons, but relatively few inputs from projection neurons. This pattern is broadly consistent in the third instar larva as well as in the first instar connectome. MBONa1/a2 presynaptic terminals innervate a region immediately surrounding the MB medial lobe output region in the ipsilateral and contralateral brain hemispheres. By monitoring calcium activity using jRCamP1b, we find that MBONa1/a2 responses are odor-concentration dependent, responding only to ethyl acetate (EA) concentrations higher than a 200-fold dilution, in contrast to MB neurons which are relatively concentration-invariant and respond to EA dilutions as low as 10-4. Optogenetic activation of the calyx-innervating sVUM1 modulatory neurons originating in the SEZ (Subesophageal zone), did not show a detectable effect on MBONa1/a2 odor responses. Optogenetic activation of MBONa1/a2 using CsChrimson impaired odor discrimination learning compared to controls. We propose that MBONa1/a2 form an output channel of the calyx, summing convergent sensory and modulatory input, firing only to high odor concentration, and might affect the activity of downstream MB targets. Copy rights belong to original authors. Visit the link for more info Podcast created by Paper Player, LLC

Life, Death, and Taxonomy
Episode 256 – Large Blue Butterfly: Larval Marvel

Life, Death, and Taxonomy

Play Episode Listen Later Dec 13, 2022 20:29


“…and today we're giving our last hope to you. Don't give it back to me, Bitterblue. But more on that later.” In the insect world, there are threats around every log and under every leaf. A young grub is all alone in a huge place. Worse yet, a lot of creatures think he tastes slimy […]

Impronta Animale
Il Superpotere del Gambero Pistola - Hero Animals

Impronta Animale

Play Episode Listen Later Dec 9, 2022 7:06


"Edizione straordinariaaaa! Un super animale è in città! Ha una pistola e non ha paura di usarla! Eroe o Criminale?"L'episodio utilizza le seguenti musiche CC:"Monkeys Spinning Monkeys" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 4.0 Licensehttp://creativecommons.org/licenses/by/4.0/"Hard Boiled" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 4.0 Licensehttp://creativecommons.org/licenses/by/4.Ref. "Larval development of the snapping shrimp Alpheus heterochaelis Say, reared in the laboratory"."Flow visualisation and high speed video analysis of water jets in the snapping shrimp (Alpheus heterochaelis)".

Nice Genes!
Cracking the Coral Code

Nice Genes!

Play Episode Listen Later Nov 29, 2022 42:47 Transcription Available


Preparing the Environment: Climate Special Part 1  In part 1 of our climate special, we revisit our oceans to look at the rocky atolls and reefs that are home to colourful world builders, coral!Since the 1950's the planet has lost half of its coral reefs due to degradation. With ocean temperatures rising and harmful environmental and human activities, how can we better protect essential ecosystems for communities and marine life alike?Dr. Kaylee Byers sits down with Dr. Shayle Matsuda, a marine biologist looking into the effects of environmental stresses on coral reefs due to the climate crisis. And with the aid of genomic sequencing, Shayle wonders if we can utilize a clever symbiotic relationship found on these fascinating organisms to cultivate greater reef resilience into the future. Next, meet Ben Williams from the University of Exeter, who shares a unique acoustic invention to help restore reefs in Indonesia. And finally, researcher Madelyn Jones takes us through her work on the British Columbia coast to replenish the spiralling towers we call "kelp forests."Click here for this episode's Learn-A-Long! Resources:1. The sound of recovery: Coral reef restoration success is detectable in the soundscape | British Ecological Society2. Vital Signs: Ocean Warming | NASA3. The Planet Has Lost Half of Its Coral Reefs Since 1950 | Smithsonian4. Coral Reefs Could All Die Off by 2050 | EcoWatch5. ‘Dire outlook': scientists say Florida reefs have lost nearly 98% of coral | The Guardian6. Report: Florida's Coral Reefs Among Most Damaged In U.S. | CBS Local News7. HydroMoth: Testing a prototype low-cost acoustic recorder for aquatic environments | ZSL8. What is a kelp forest? | National Oceanic and Atmospheric Administration9. Canada's kelp forests are at risk. A seaweed farmer is trying to save them | CBC Creator Network10. Months after mass die-off of sea creatures in B.C. heat dome, researchers return in search of signs of life | CBC News11. Coral Bleaching Susceptibility Is Predictive of Subsequent Mortality Within but Not Between Coral Species | Frontiers12. Larval thermal conditioning does not improve post-settlement thermal tolerance in the dominant reef-building coral, Montipora capitata | Springer13. Genome-powered classification of microbial eukaryotes: focus on coral algal symbionts | Science Direct12. Do Coral Reefs Produce Oxygen? | Techie Scientist14. What is coral spawning? | National Oceanic and Atmospheric Administration15. Myth 5 - Genomics Can't Help Climate Change | Genome British ColumbiaSee omnystudio.com/listener for privacy information.

Arthro-Pod
Arthro-Pod EP 124: Investigating Forensic Entomology with Krystal Hans

Arthro-Pod

Play Episode Listen Later Oct 31, 2022


 Welcome back to Arthro-Pod! Today's show features Dr. Krystal Hans of Purdue University. Dr. Hans is a forensic entomologist and she guides the gang through wriggly and wonderful world of using bugs to solve crime. Tune in to learn about how to get into forensics, how evidence is collected, and in what order the insects would colonize your body!Larval Chrysomya rufifaces, photo by Andrew MeedsShow NotesYou can find Dr. Hans online in these spaces Lab website: https://ag.purdue.edu/department/entm/hans-lab/index.html Consulting Website: https://hansforensics.com Tik Tok: Forensic EntomologyInstagram: hans_forensic_entomologyTwitter: @KrystalHansLearn more about forensic entomology at these sitesNorth American Forensic Entomology Association Texas A&M forensic entomology write upEntomology Today articleAdult Chrysomya rufifaces, Photo by Andrew MeedsQuestions? Comments? Follow the show on Twitter @Arthro_PodshowFollow the hosts on Twitter @bugmanjon, @JodyBugsmeUNL, and @MSkvarla36Get the show through Apple Podcast, Stitcher, Spotify, or your favorite podcatching app!If you can spare a moment, we appreciate when you subscribe to the show on those apps or when you take time to leave a review!Subscribe to our feed on Feedburner!  This episode is freely available on archive.org and is licensed under Creative Commons: By Attribution 3.0. http://creativecommons.org/licenses/by/3.0/Beginning/ending theme: "There It Is" by Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0

PaperPlayer biorxiv neuroscience
Biomechanics and neural circuits for vestibular-induced fine postural control in larval zebrafish

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Sep 23, 2022


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2022.09.22.508983v1?rss=1 Authors: Sugioka, T., Tanimoto, M., Higashijima, S.-i. Abstract: Land-walking vertebrates maintain a desirable posture by finely controlling muscles. It is unclear whether fish also finely control posture in the water. Here, we showed that larval zebrafish have fine posture control. When roll-tilted, fish recovered their upright posture using a reflex behavior, which was a slight body bend near the swim bladder. The vestibular-induced body bend produces a misalignment between gravity and buoyancy, generating a moment of force that recovers the upright posture. We identified the neural circuits for the reflex, including the vestibular nucleus (tangential nucleus) through reticulospinal neurons (neurons in the nucleus of the medial longitudinal fasciculus) to the spinal cord, and finally to the posterior hypaxial muscles, a special class of muscles near the swim bladder. These results suggest that fish maintain a dorsal-up posture by frequently performing the body bend reflex and demonstrate that the reticulospinal pathway plays a critical role in fine postural control. Copy rights belong to original authors. Visit the link for more info Podcast created by PaperPlayer

PaperPlayer biorxiv neuroscience
A STIM dependent dopamine-insulin axis maintains the larval drive to feed and grow in Drosophila

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Sep 20, 2022


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2022.09.20.508641v1?rss=1 Authors: Kasturacharya, N., Dhall, J. K., Hasan, G. Abstract: Appropriate nutritional intake is essential for organismal survival. In holometabolous insects such as Drosophila melanogaster, the quality and quantity of food ingested as larvae determines adult size and fecundity. Here we have identified a subset of dopaminergic neurons (THD') that maintain the larval motivation to feed. Dopamine release from these neurons requires the ER Ca2+ sensor STIM. Larvae with loss of STIM stop feeding, whereas expression of STIM in THD' neurons rescues feeding, growth and viability of STIM null mutants. Moreover STIM is essential for maintaining excitability and release of dopamine from THD' neurons. Optogenetic stimulation of THD' neurons identified connectivity to neuropeptidergic cells, including median neuro secretory cells that secrete insulin-like peptides. Loss of STIM in THD' cells alters the developmental profile of specific insulin-like peptides including ilp3. Loss of ilp3 partially rescues STIM null mutants and inappropriate expression of ilp3 in larvae affects development and growth. In summary we have identified a novel STIM-dependent dopamine-ILP circuit that regulates developmental changes in larval feeding behaviour. Copy rights belong to original authors. Visit the link for more info Podcast created by PaperPlayer

PaperPlayer biorxiv neuroscience
Optogenetic induction of chronic glucocorticoid exposure in early-life impairs stress-response in larval zebrafish.

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Sep 10, 2022


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2022.09.09.507267v1?rss=1 Authors: Nagpal, J., Eachus, H., Lityagina, O., Ryu, S. Abstract: Organisms respond to stressors through a coordinated set of physiological and behavioural responses. Zebrafish provides an opportunity to study conserved mechanisms underlying the stress-response that is regulated largely by the neuroendocrine Hypothalamus-Pituitary-Adrenal/Interrenal (HPA) axis, with glucocorticoids (GC) as the final effector. In this study, we evaluated the effect of chronically active GC signalling in early life on the baseline and stress evoked GC(cortisol) levels in larval zebrafish. To this end, we employed an optogenetic actuator, Beggiatoa photoactivated adenylyl cyclase, expressed in the interrenal cells of zebrafish and demonstrate that its chronic activation leads to hypercortisolaemia and dampens the acute-stress evoked cortisol levels, across a variety of stressor modalities during early life. This blunting of stress-response, a phenotype reported by many studies to be observed in human subjects exposed to early-life trauma, was conserved in ontogeny at a later developmental stage. Furthermore, we observe a strong reduction of proopiomelanocortin (POMC)-expressing cells in the pituitary as well as global upregulation of FKBP5 gene expression, impinging on the negative feedback regulation elicited by elevated cortisol levels. Going forward, we propose that this model can be leveraged to tease apart the mechanisms underlying developmental programming of HPA axis by early-life stress and its implications for vulnerability and resilience to stress in adulthood. Copy rights belong to original authors. Visit the link for more info Podcast created by PaperPlayer

The Fisheries Podcast
187 - Larval Eels, Diverse Voices, and AFS Involvement with Dr. Kat Dale

The Fisheries Podcast

Play Episode Listen Later Aug 14, 2022 31:34


This week Kadie chats with Dr. Kat Dale about her research with larval eels, the Diverse Voices in Fisheries Science speaker series put on by the Santa Cruz-Monterey Bay student subunit of the American Fisheries Society (AFS), and her involvement across multiple levels of AFS. Kat is also the head of the student planning committee for the annual AFS meeting in Spokane, Washington, so tune in to hear about the fun events and symposia happening for students and early career professionals coming up next week (August 21-25)!    If you'd like to get in touch with Kat or learn more about her work you can find her at her website: https://www.kaemdale.com/, send her an email at kdale@ucsc.edu, or find her on Instagram @katfishouttawater. You can also find Kat's Fish Matter artwork here and at her Etsy shop.   Find the various links we mentioned in this episode below! Check out the Diverse Voices in Fisheries Science recordings here and the article in Fisheries here. Find out more about Dr. J. Drew Lanham's poetry and other writing here as well as his research here. Learn more about climate action Venn Diagrams from Dr. Ayana Elizabeth Johnson in this How to Save a Planet podcast episode, in her co-edited anthology, All We Can Save, and/or her TED talk: How to Find Joy in Climate Action. If you would like to contribute to the Fisheries Podcast, either send us an email at feedback@thefisheriespodcast.com or submit your stories to our Fish Tales google form and/or our advice clips google form. Get in touch with us! The Fisheries Podcast is on Facebook, Twitter, and Instagram: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).

Tales From The Arcanist
22. "Salamanderman" and "Crones in Their Larval State"

Tales From The Arcanist

Play Episode Listen Later Jun 9, 2022 16:12


This week, we find out not every nickname has to be clever to hit home, and we're learning that magic can come in all shapes and sizes. Want to support The Arcanist, our writers, and thousands of other creatives? Join us at medium.com/@TheArcanist/membership and never miss another story. Tales From The Arcanist is produced by the editors of The Arcanist. Music by Spaceinvader from Fugue.

Better Biome Podcast
Episode 10: A Creature, Who Gets A Bad Rap, Shows Tremendous Promise In Wound Care

Better Biome Podcast

Play Episode Listen Later Feb 24, 2022 48:22


Join us as we discuss a lesser known wound care therapy with Dr. Ronald Sherman. These small but mighty creatures do really important work and won't harm you in the slightest. They remove dead tissue from infected wounds, they even help in the case of antibiotic resistant organisms and they do so in a matter of a couple of days. They get a bad rap for being gross but actually they are quite the opposite. They are helping humans heal where modern medicine cannot. For instance, they have the potential to save someone from having their foot amputated due to diabetic foot ulcers. There are many use cases for them. They only get a bad rap because of their association. You typically find these little creatures in the trash, scavenging on a dead animal, etc. These powerful and healing creatures  are maggots.   Learn more about maggot therapy click here. Episode Takeaways:  What is a maggot? 00:05:40 Larval stage of the fly Blow flies feed on dead tissue and are instinctively motivated to get as far away from the host as possible after a couple of day so they don't get eaten by the next scavenger   How do maggots help us heal?  00:09:00 They dissolve the dead enzymes by secreting digestive enzymes and suck the juices up  Some species can only dissolve dead tissue not live tissue They remove dead tissue Feed for two days and leave the host  They kill microbes (bacteria, fungus, virus') They create growth stimulating activity - clinical observations, lab evidence, studies show proof of this   Historical use 00:10:00 There is some historical literature that suggests the Mayans and Native australians used maggots in their medical care Europe - military doctor observations - soldiers whose wounds had maggots had a better chance of survival  A practitioner - Johns Hopkins - intentionally placed maggots on children with bone infections   Why is maggot therapy not more widely used 00:14:30 In europe maggot therapy is much more popular and widely used In North America - this therapy is not widely used enough Much of it is due to the way insurance works in north america  There are over 100,000 limb amputations per year due to diabetes, where maggot therapy could be useful Less than 2% are given a trial of maggot therapy  The research shows that 50% or more of patients with diabetic foot ulcers who are given maggot therapy as a last resort, are able to heal their wounds and do not have to get their limbs amputated. . In a Kaiser Permanente study, 74% of their patients given maggot therapy as a last resort avoided amputation or ended up with a more conservative amputation.   How do maggots control bacteria 00:20:00 When they feed on the dead tissue, they are sucking up a lot of bacteria as well.  Clinically, several researchers have been able to describe a decrease in the number of pathogens on the wound as well as a decrease in the population size of those organisms. Some researchers have looked at antibiotic resistant organisms such as MRSA and seen success with maggot therapy killing those organisms.    How does Maggot therapy work? 00:35:38 They feed for 3-4 days depending on temperature and abundance of food Once they finish feeding, they leave the host  The maggot crawls like a worm away from the host For treatment purposes, in order to keep the maggots on the wound, they cover them with a porous net fabric that allows air to get through, or they contain them in a bag    Is it painful? 00:42:00 No direct pain-reducing affect  Most people have no wound pain and don't feel the maggots  For those who can feel their wounds - the maggots could cause pain after 24 hours so practitioners are encouraged to help the patient with an analgesic     Interested in learning more about maggot therapy? 00:45:00 Visit Bterfoundation.org for lots of information on how and where to get this therapy    Where to learn more about PBHealthcenter.com Instagram: better.biome Instagram: Microbiome Keynotes Facebook: Microbiome Keynotes Instagram: Dr. Nicole Instagram: Kiran Krishnan  

Global Pause - Rethink the Future
#139: Deleuze's dark precursor & the larval self

Global Pause - Rethink the Future

Play Episode Listen Later Jan 4, 2022 13:36


We explore the post consumer transitioning by utilising the Deleuzian concepts of the dark precursor and the larval self to frame this change.

Bob Enyart Live
RSR's List of Not So Old Things

Bob Enyart Live

Play Episode Listen Later Jun 26, 2021


  [While Bob & Cheryl Enyart go fishing we invite you to enjoy from the RSR archives our favorite List of Not So Old Things! Photos from today, June 25, 2021.] -- Finches Diversify in Decades, Opals Form in Months,  Man's Genetic Diversity in 200 Generations, C-14 Everywhere: Real Science Radio hosts Bob Enyart and Fred Williams present their classic program that led to the audience-favorites rsr.org/list-shows! See below and hear on today's radio program our list of Not So Old and Not So Slow Things! From opals forming in months to man's genetic diversity in 200 generations, and with carbon 14 everywhere it's not supposed to be (including in diamonds and dinosaur bones!), scientific observations fill the guys' most traditional list challenging those who claim that the earth is billions of years old. Many of these scientific finds demand a re-evaluation of supposed million and billion-year ages. * Finches Adapt in 17 Years, Not 2.3 Million: Charles Darwin's finches are claimed to have taken 2,300,000 years to diversify from an initial species blown onto the Galapagos Islands. Yet individuals from a single finch species on a U.S. Bird Reservation in the Pacific were introduced to a group of small islands 300 miles away and in at most 17 years, like Darwin's finches, they had diversified their beaks, related muscles, and behavior to fill various ecological niches. Hear about this also at rsr.org/spetner. * Opals Can Form in "A Few Months" And Don't Need 100,000 Years: A leading authority on opals, Allan W. Eckert, observed that, "scientific papers and textbooks have told that the process of opal formation requires tens of thousands of years, perhaps hundreds of thousands... Not true." A 2011 peer-reviewed paper in a geology journal from Australia, where almost all the world's opal is found, reported on the: "new timetable for opal formation involving weeks to a few months and not the hundreds of thousands of years envisaged by the conventional weathering model." (And apparently, per a 2019 report from Entomology Today, opals can even form around insects!) More knowledgeable scientists resist the uncritical, group-think insistence on false super-slow formation rates (as also for manganese nodules, gold veins, stone, petroleum, canyons and gullies, and even guts, all below). Regarding opals, Darwinian bias led geologists to long ignore possible quick action, as from microbes, as a possible explanation for these mineraloids. For both in nature and in the lab, opals form rapidly, not even in 10,000 years, but in weeks. See this also from creationists by a geologist, a paleobiochemist, and a nuclear chemist. * Finches Speciate in Two Generations vs Two Million Years for Darwin's Birds?  Darwin's finches on the Galapagos Islands are said to have diversified into 14 species over a period of two million years. But in 2017 the journal Science reported a newcomer to the Island which within two generations spawned a reproductively isolated new species. In another instance as documented by Lee Spetner, a hundred birds of the same finch species introduced to an island cluster a 1,000 kilometers from Galapagos diversified into species with the typical variations in beak sizes, etc. "If this diversification occurred in less than seventeen years," Dr. Spetner asks, "why did Darwin's Galapagos finches [as claimed by evolutionists] have to take two million years?" * Blue Eyes Originated Not So Long Ago: Not a million years ago, nor a hundred thousand years ago, but based on a peer-reviewed paper in Human Genetics, a press release at Science Daily reports that, "research shows that people with blue eyes have a single, common ancestor. A team at the University of Copenhagen have tracked down a genetic mutation which took place 6-10,000 years ago and is the cause of the eye colour of all blue-eyed humans alive on the planet today." * Adding the Entire Universe to our List of Not So Old Things? Based on March 2019 findings from Hubble, Nobel laureate Adam Riess of the Space Telescope Science Institute and his co-authors in the Astrophysical Journal estimate that the universe is about a billion years younger than previously thought! Then in September 2019 in the journal Science, the age dropped precipitiously to as low as 11.4 billion years! Of course, these measurements also further squeeze the canonical story of the big bang chronology with its many already existing problems including the insufficient time to "evolve" distant mature galaxies, galaxy clusters, superclusters, enormous black holes, filaments, bubbles, walls, and other superstructures. So, even though the latest estimates are still absurdly too old (Google: big bang predictions, and click on the #1 ranked article, or just go on over there to rsr.org/bb), regardless, we thought we'd plop the whole universe down on our List of Not So Old Things!   * After the Soft Tissue Discoveries, NOW Dino DNA: When a North Carolina State University paleontologist took the Tyrannosaurus Rex photos to the right of original biological material, that led to the 2016 discovery of dinosaur DNA, So far researchers have also recovered dinosaur blood vessels, collagen, osteocytes, hemoglobin, red blood cells, and various proteins. As of May 2018, twenty-six scientific journals, including Nature, Science, PNAS, PLoS One, Bone, and Journal of Vertebrate Paleontology, have confirmed the discovery of biomaterial fossils from many dinosaurs! Organisms including T. Rex, hadrosaur, titanosaur, triceratops, Lufengosaur, mosasaur, and Archaeopteryx, and many others dated, allegedly, even hundreds of millions of years old, have yielded their endogenous, still-soft biological material. See the web's most complete listing of 100+ journal papers (screenshot, left) announcing these discoveries at bflist.rsr.org and see it in layman's terms at rsr.org/soft. * Rapid Stalactites, Stalagmites, Etc.: A construction worker in 1954 left a lemonade bottle in one of Australia's famous Jenolan Caves. By 2011 it had been naturally transformed into a stalagmite (below, right). Increasing scientific knowledge is arguing for rapid cave formation (see below, Nat'l Park Service shrinks Carlsbad Caverns formation estimates from 260M years, to 10M, to 2M, to it "depends"). Likewise, examples are growing of rapid formations with typical chemical make-up (see bottle, left) of classic stalactites and stalagmites including:- in Nat'l Geo the Carlsbad Caverns stalagmite that rapidly covered a bat - the tunnel stalagmites at Tennessee's Raccoon Mountain - hundreds of stalactites beneath the Lincoln Memorial - those near Gladfelter Hall at Philadelphia's Temple University (send photos to Bob@rsr.org) - hundreds of stalactites at Australia's zinc mine at Mt. Isa.   - and those beneath Melbourne's Shrine of Remembrance. * Most Human Mutations Arose in 200 Generations: From Adam until Real Science Radio, in only 200 generations! The journal Nature reports The Recent Origin of Most Human Protein-coding Variants. As summarized by geneticist co-author Joshua Akey, "Most of the mutations that we found arose in the last 200 generations or so" (the same number previously published by biblical creationists). Another 2012 paper, in the American Journal of Physical Anthropology (Eugenie Scott's own field) on High mitochondrial mutation rates, shows that one mitochondrial DNA mutation occurs every other generation, which, as creationists point out, indicates that mtEve would have lived about 200 generations ago. That's not so old! * National Geographic's Not-So-Old Hard-Rock Canyon at Mount St. Helens: As our List of Not So Old Things (this web page) reveals, by a kneejerk reaction evolutionary scientists assign ages of tens or hundreds of thousands of years (or at least just long enough to contradict Moses' chronology in Genesis.) However, with closer study, routinely, more and more old ages get revised downward to fit the world's growing scientific knowledge. So the trend is not that more information lengthens ages, but rather, as data replaces guesswork, ages tend to shrink until they are consistent with the young-earth biblical timeframe. Consistent with this observation, the May 2000 issue of National Geographic quotes the U.S. Forest Service's scientist at Mount St. Helens, Peter Frenzen, describing the canyon on the north side of the volcano. "You'd expect a hard-rock canyon to be thousands, even hundreds of thousands of years old. But this was cut in less than a decade." And as for the volcano itself, while again, the kneejerk reaction of old-earthers would be to claim that most geologic features are hundreds of thousands or millions of years old, the atheistic National Geographic magazine acknowledges from the evidence that Mount St. Helens, the volcanic mount, is only about 4,000 years old! See below and more at rsr.org/mount-st-helens. * Mount St. Helens Dome Ten Years Old not 1.7 Million: Geochron Laboratories of Cambridge, Mass., using potassium-argon and other radiometric techniques claims the rock sample they dated, from the volcano's dome, solidified somewhere between 340,000 and 2.8 million years ago. However photographic evidence and historical reports document the dome's formation during the 1980s, just ten years prior to the samples being collected. With the age of this rock known, radiometric dating therefore gets the age 99.99999% wrong. * Devils Hole Pupfish Isolated Not for 13,000 Years But for 100: Secular scientists default to knee-jerk, older-than-Bible-age dates. However, a tiny Mojave desert fish is having none of it. Rather than having been genetically isolated from other fish for 13,000 years (which would make this small school of fish older than the Earth itself), according to a paper in the journal Nature, actual measurements of mutation rates indicate that the genetic diversity of these Pupfish could have been generated in about 100 years, give or take a few. * Polystrates like Spines and Rare Schools of Fossilized Jellyfish: Previously, seven sedimentary layers in Wisconsin had been described as taking a million years to form. And because jellyfish have no skeleton, as Charles Darwin pointed out, it is rare to find them among fossils. But now, reported in the journal Geology, a school of jellyfish fossils have been found throughout those same seven layers. So, polystrate fossils that condense the time of strata deposition from eons to hours or months, include: - Jellyfish in central Wisconsin were not deposited and fossilized over a million years but during a single event quick enough to trap a whole school. (This fossil school, therefore, taken as a unit forms a polystrate fossil.) Examples are everywhere that falsify the claims of strata deposition over millions of years. - Countless trilobites buried in astounding three dimensionality around the world are meticulously recovered from limestone, much of which is claimed to have been deposited very slowly. Contrariwise, because these specimens were buried rapidly in quickly laid down sediments, they show no evidence of greater erosion on their upper parts as compared to their lower parts.- The delicacy of radiating spine polystrates, like tadpole and jellyfish fossils, especially clearly demonstrate the rapidity of such strata deposition. - A second school of jellyfish, even though they rarely fossilized, exists in another locale with jellyfish fossils in multiple layers, in Australia's Brockman Iron Formation, constraining there too the rate of strata deposition. By the way, jellyfish are an example of evolution's big squeeze. Like galaxies evolving too quickly, galaxy clusters, and even human feet (which, like Mummy DNA, challenge the Out of Africa paradigm), jellyfish have gotten into the act squeezing evolution's timeline, here by 200 million years when they were found in strata allegedly a half-a-billion years old. Other examples, ironically referred to as Medusoid Problematica, are even found in pre-Cambrian strata. - 171 tadpoles of the same species buried in diatoms. - Leaves buried vertically through single-celled diatoms powerfully refute the claimed super-slow deposition of diatomaceous rock. - Many fossils, including a Mesosaur, have been buried in multiple "varve" layers, which are claimed to be annual depositions, yet they show no erosional patterns that would indicate gradual burial (as they claim, absurdly, over even thousands of years). - A single whale skeleton preserved in California in dozens of layers of diatom deposits thus forming a polystrate fossil. - 40 whales buried in the desert in Chile. "What's really interesting is that this didn't just happen once," said Smithsonian evolutionist Dr. Nick Pyenson. It happened four times." Why's that? Because "the fossil site has at least four layers", to which Real Science Radio's Bob Enyart replies: "Ha ha ha ha ha ha ha ha ha ha ha", with RSR co-host Fred Williams thoughtfully adding, "Ha ha!" * Polystrate Trees: Examples abound around the world of polystrate trees:  - Yellowstone's petrified polystrate forest (with the NPS exhibit sign removed; see below) with successive layers of rootless trees demonstrating the rapid deposition of fifty layers of strata. - A similarly formed polystrate fossil forest in France demonstrating the rapid deposition of a dozen strata. - In a thousand locations including famously the Fossil Cliffs of Joggins, Nova Scotia, polystrate fossils such as trees span many strata. - These trees lack erosion: Not only should such fossils, generally speaking, not even exist, but polystrates including trees typically show no evidence of erosion increasing with height. All of this powerfully disproves the claim that the layers were deposited slowly over thousands or millions of years. In the experience of your RSR radio hosts, evolutionists commonly respond to this hard evidence with mocking. See CRSQ June 2006, ICR Impact #316, and RSR 8-11-06 at KGOV.com. * Yellowstone Petrified Trees Sign Removed: The National Park Service removed their incorrect sign (see left and more). The NPS had claimed that in dozens of different strata over a 40-square mile area, many petrified trees were still standing where they had grown. The NPS eventually removed the sign partly because those petrified trees had no root systems, which they would have had if they had grown there. Instead, the trees of this "fossil forest" have roots that are abruptly broken off two or three feet from their trunks. If these mature trees actually had been remnants of sequential forests that had grown up in strata layer on top of strata layer, 27 times on Specimen Ridge (and 50 times at Specimen Creek), such a natural history implies passage of more time than permitted by biblical chronology. So, don't trust the National Park Service on historical science because they're wrong on the age of the Earth. * Wood Petrifies Quickly: Not surprisingly, by the common evolutionary knee-jerk claim of deep time, "several researchers believe that several millions of years are necessary for the complete formation of silicified wood". Our List of Not So Old and Not So Slow Things includes the work of five Japanese scientists who proved creationist research and published their results in the peer-reviewed journal Sedimentary Geology showing that wood can and does petrify rapidly. Modern wood significantly petrified in 36 years these researchers concluded that wood buried in strata could have been petrified in "a fairly short period of time, in the order of several tens to hundreds of years." * The Scablands: The primary surface features of the Scablands, which cover thousands of square miles of eastern Washington, were long believed to have formed gradually. Yet, against the determined claims of uniformitarian geologists, there is now overwhelming evidence as presented even in a NOVA TV program that the primary features of the Scablands formed rapidly from a catastrophic breach of Lake Missoula causing a massive regional flood. Of course evolutionary geologists still argue that the landscape was formed over tens of thousands of years, now by claiming there must have been a hundred Missoula floods. However, the evidence that there was Only One Lake Missoula Flood has been powerfully reinforced by a University of Colorado Ph.D. thesis. So the Scablands itself is no longer available to old-earthers as de facto evidence for the passage of millions of years. * The Heart Mountain Detachment: in Wyoming just east of Yellowstone, this mountain did not break apart slowly by uniformitarian processes but in only about half-an-hour as widely reported including in the evolutionist LiveScience.com, "Land Speed Record: Mountain Moves 62 Miles in 30 Minutes." The evidence indicates that this mountain of rock covering 425 square miles rapidly broke into 50 pieces and slid apart over an area of more than 1,300 square miles in a biblical, not a "geological," timeframe.  * "150 Million" year-old Squid Ink Not Decomposed: This still-writable ink had dehydrated but had not decomposed! The British Geological Survey's Dr. Phil Wilby, who excavated the fossil, said, "It is difficult to imagine how you can have something as soft and sloppy as an ink sac fossilised in three dimensions, still black, and inside a rock that is 150 million years old." And the Daily Mail states that, "the black ink was of exactly the same structure as that of today's version", just desiccated. And Wilby added, "Normally you would find only the hard parts like the shell and bones fossilised but... these creatures... can be dissected as if they are living animals, you can see the muscle fibres and cells. It is difficult to imagine... The structure is similar to ink from a modern squid so we can write with it..." Why is this difficult for evolutionists to imagine? Because as Dr. Carl Wieland writes, "Chemical structures 'fall apart' all by themselves over time due to the randomizing effects of molecular motion." Decades ago Bob Enyart broadcast a geology program about Mount St. Helens' catastrophic destruction of forests and the hydraulic transportation and upright deposition of trees. Later, Bob met the chief ranger from Haleakala National Park on Hawaii's island of Maui, Mark Tanaka-Sanders. The ranger agreed to correspond with his colleague at Yellowstone to urge him to have the sign removed. Thankfully, it was then removed. (See also AIG, CMI, and all the original Yellowstone exhibit photos.) Groundbreaking research conducted by creation geologist Dr. Steve Austin in Spirit Lake after Mount St. Helens eruption provided a modern-day analog to the formation of Yellowstone fossil forest. A steam blast from that volcano blew over tens of thousands of trees leaving them without attached roots. Many thousands of those trees were floating upright in Spirit Lake, and began sinking at varying rates into rapidly and sporadically deposited sediments. Once Yellowstone's successive forest interpretation was falsified (though like with junk DNA, it's too big to fail, so many atheists and others still cling to it), the erroneous sign was removed. * Asiatic vs. European Honeybees: These two populations of bees have been separated supposedly for seven million years. A researcher decided to put the two together to see what would happen. What we should have here is a failure to communicate that would have resulted after their "language" evolved over millions of years. However, European and Asiatic honeybees are still able to communicate, putting into doubt the evolutionary claim that they were separated over "geologic periods." For more, see the Public Library of Science, Asiatic Honeybees Can Understand Dance Language of European Honeybees. (Oh yeah, and why don't fossils of poorly-formed honeycombs exist, from the millions of years before the bees and natural selection finally got the design right? Ha! Because they don't exist! :) Nautiloid proves rapid limestone formation.* Remember the Nautiloids: In the Grand Canyon there is a limestone layer averaging seven feet thick that runs the 277 miles of the canyon (and beyond) that covers hundreds of square miles and contains an average of one nautiloid fossil per square meter. Along with many other dead creatures in this one particular layer, 15% of these nautiloids were killed and then fossilized standing on their heads. Yes, vertically. They were caught in such an intense and rapid catastrophic flow that gravity was not able to cause all of their dead carcasses to fall over on their sides. Famed Mount St. Helens geologist Steve Austin is also the world's leading expert on nautiloid fossils and has worked in the canyon and presented his findings to the park's rangers at the invitation of National Park Service officials. Austin points out, as is true of many of the world's mass fossil graveyards, that this enormous nautiloid deposition provides indisputable proof of the extremely rapid formation of a significant layer of limestone near the bottom of the canyon, a layer like the others we've been told about, that allegedly formed at the bottom of a calm and placid sea with slow and gradual sedimentation. But a million nautiloids, standing on their heads, literally, would beg to differ. At our sister stie, RSR provides the relevant Geologic Society of America abstract, links, and video. *  Now It's Allegedly Two Million Year-Old Leaves: "When we started pulling leaves out of the soil, that was surreal, to know that it's millions of years old..." sur-re-al: adjective: a bizarre mix of fact and fantasy. In this case, the leaves are the facts. Earth scientists from Ohio State and the University of Minnesota say that wood and leaves they found in the Canadian Arctic are at least two million years old, and perhaps more than ten million years old, even though the leaves are just dry and crumbly and the wood still burns! * Gold Precipitates in Veins in Less than a Second: After geologists submitted for decades to the assumption that each layer of gold would deposit at the alleged super slow rates of geologic process, the journal Nature Geoscience reports that each layer of deposition can occur within a few tenths of a second. Meanwhile, at the Lihir gold deposit in Papua New Guinea, evolutionists assumed the more than 20 million ounces of gold in the Lihir reserve took millions of years to deposit, but as reported in the journal Science, geologists can now demonstrate that the deposit could have formed in thousands of years, or far more quickly! Iceland's not-so-old Surtsey Island looks ancient.* Surtsey Island, Iceland: Of the volcanic island that formed in 1963, New Scientist reported in 2007 about Surtsey that "geographers... marvel that canyons, gullies and other land features that typically take tens of thousands or millions of years to form were created in less than a decade." Yes. And Sigurdur Thorarinsson, Iceland's chief  geologist, wrote in the months after Surtsey formed, "that the time scale," he had been trained "to attach to geological developments is misleading." [For what is said to] take thousands of years... the same development may take a few weeks or even days here [including to form] a landscape... so varied and mature that it was almost beyond belief... wide sandy beaches and precipitous crags... gravel banks and lagoons, impressive cliffs… hollows, glens and soft undulating land... fractures and faultscarps, channels and screes… confounded by what met your eye... boulders worn by the surf, some of which were almost round... -Iceland's chief geologist * The Palouse River Gorge: In the southeast of Washington State, the Palouse River Gorge is one of many features formed rapidly by 500 cubic miles of water catastrophically released with the breaching of a natural dam in the Lake Missoula Flood (which gouged out the Scablands as described above). So, hard rock can be breached and eroded rapidly. * Leaf Shapes Identical for 190 Million Years?  From Berkley.edu, "Ginkgo biloba... dates back to... about 190 million years ago... fossilized leaf material from the Tertiary species Ginkgo adiantoides is considered similar or even identical to that produced by modern Ginkgo biloba trees... virtually indistinguishable..." The literature describes leaf shapes as "spectacularly diverse" sometimes within a species but especially across the plant kingdom. Because all kinds of plants survive with all kinds of different leaf shapes, the conservation of a species retaining a single shape over alleged deep time is a telling issue. Darwin's theory is undermined by the unchanging shape over millions of years of a species' leaf shape. This lack of change, stasis in what should be an easily morphable plant trait, supports the broader conclusion that chimp-like creatures did not become human beings and all the other ambitious evolutionary creation of new kinds are simply imagined. (Ginkgo adiantoides and biloba are actually the same species. Wikipedia states, "It is doubtful whether the Northern Hemisphere fossil species of Ginkgo can be reliably distinguished." For oftentimes, as documented by Dr. Carl Werner in his Evolution: The Grand Experiment series, paleontogists falsely speciate identical specimens, giving different species names, even different genus names, to the fossil and living animals that appear identical.) * Box Canyon, Idaho: Geologists now think Box Canyon in Idaho, USA, was carved by a catastrophic flood and not slowly over millions of years with 1) huge plunge pools formed by waterfalls; 2) the almost complete removal of large basalt boulders from the canyon; 3) an eroded notch on the plateau at the top of the canyon; and 4) water scour marks on the basalt plateau leading to the canyon. Scientists calculate that the flood was so large that it could have eroded the whole canyon in as little as 35 days. See the journal Science, Formation of Box Canyon, Idaho, by Megaflood, and the Journal of Creation, and Creation Magazine. * Manganese Nodules Rapid Formation: Allegedly, as claimed at the Wikipedia entry from 2005 through 2021: "Nodule growth is one of the slowest of all geological phenomena – in the order of a centimeter over several million years." Wow, that would be slow! And a Texas A&M Marine Sciences technical slide presentation says, “They grow very slowly (mm/million years) and can be tens of millions of years old.” But according to a World Almanac documentary they have formed "around beer cans," said marine geologist Dr. John Yates in the 1997 video Universe Beneath the Sea: The Next Frontier. There are also reports of manganese nodules forming around ships sunk in the First World War. See more at at youngearth.com, at TOL, in the print edition of the Journal of Creation, and in this typical forum discussion with atheists (at the Chicago Cubs forum no less :). * "6,000 year-old" Mitochondrial Eve: As the Bible calls "Eve... the mother of all living" (Gen. 3:20), genetic researchers have named the one woman from whom all humans have descended "Mitochondrial Eve." But in a scientific attempt to date her existence, they openly admit that they included chimpanzee DNA in their analysis in order to get what they viewed as a reasonably old date of 200,000 years ago (which is still surprisingly recent from their perspective, but old enough not to strain Darwinian theory too much). But then as widely reported including by Science magazine, when they dropped the chimp data and used only actual human mutation rates, that process determined that Eve lived only six thousand years ago! In Ann Gibbon's Science article, "Calibrating the Mitochondrial Clock," rather than again using circular reasoning by assuming their conclusion (that humans evolved from ape-like creatures), they performed their calculations using actual measured mutation rates. This peer-reviewed journal then reported that if these rates have been constant, "mitochondrial Eve… would be a mere 6000 years old." See also the journal Nature and creation.com's "A shrinking date for Eve," and Walt Brown's assessment. Expectedly though, evolutionists have found a way to reject their own unbiased finding (the conclusion contrary to their self-interest) by returning to their original method of using circular reasoning, as reported in the American Journal of Human Genetics, "calibrating against recent evidence for the divergence time of humans and chimpanzees,"  to reset their mitochondrial clock back to 200,000 years. * Even Younger Y-Chromosomal Adam: (Although he should be called, "Y-Chromosomal Noah.") While we inherit our mtDNA only from our mothers, only men have a Y chromosome (which incidentally genetically disproves the claim that the fetus is "part of the woman's body," since the little boy's y chromosome could never be part of mom's body). Based on documented mutation rates on and the extraordinary lack o

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Real Science Radio
RSR's List of Not So Old Things

Real Science Radio

Play Episode Listen Later Jun 26, 2021


[While Bob & Cheryl Enyart go fishing we invite you to enjoy from the RSR archives our favorite List of Not So Old Things! Photos from today, June 25, 2021.] -- Finches Diversify in Decades, Opals Form in Months,  Man's Genetic Diversity in 200 Generations, C-14 Everywhere: Real Science Radio hosts Bob Enyart and Fred Williams present their classic program that led to the audience-favorites rsr.org/list-shows! See below and hear on today's radio program our list of Not So Old and Not So Slow Things! From opals forming in months to man's genetic diversity in 200 generations, and with carbon 14 everywhere it's not supposed to be (including in diamonds and dinosaur bones!), scientific observations fill the guys' most traditional list challenging those who claim that the earth is billions of years old. Many of these scientific finds demand a re-evaluation of supposed million and billion-year ages. * Finches Adapt in 17 Years, Not 2.3 Million: Charles Darwin's finches are claimed to have taken 2,300,000 years to diversify from an initial species blown onto the Galapagos Islands. Yet individuals from a single finch species on a U.S. Bird Reservation in the Pacific were introduced to a group of small islands 300 miles away and in at most 17 years, like Darwin's finches, they had diversified their beaks, related muscles, and behavior to fill various ecological niches. Hear about this also at rsr.org/spetner. * Opals Can Form in "A Few Months" And Don't Need 100,000 Years: A leading authority on opals, Allan W. Eckert, observed that, "scientific papers and textbooks have told that the process of opal formation requires tens of thousands of years, perhaps hundreds of thousands... Not true." A 2011 peer-reviewed paper in a geology journal from Australia, where almost all the world's opal is found, reported on the: "new timetable for opal formation involving weeks to a few months and not the hundreds of thousands of years envisaged by the conventional weathering model." (And apparently, per a 2019 report from Entomology Today, opals can even form around insects!) More knowledgeable scientists resist the uncritical, group-think insistence on false super-slow formation rates (as also for manganese nodules, gold veins, stone, petroleum, canyons and gullies, and even guts, all below). Regarding opals, Darwinian bias led geologists to long ignore possible quick action, as from microbes, as a possible explanation for these mineraloids. For both in nature and in the lab, opals form rapidly, not even in 10,000 years, but in weeks. See this also from creationists by a geologist, a paleobiochemist, and a nuclear chemist. * Finches Speciate in Two Generations vs Two Million Years for Darwin's Birds?  Darwin's finches on the Galapagos Islands are said to have diversified into 14 species over a period of two million years. But in 2017 the journal Science reported a newcomer to the Island which within two generations spawned a reproductively isolated new species. In another instance as documented by Lee Spetner, a hundred birds of the same finch species introduced to an island cluster a 1,000 kilometers from Galapagos diversified into species with the typical variations in beak sizes, etc. "If this diversification occurred in less than seventeen years," Dr. Spetner asks, "why did Darwin's Galapagos finches [as claimed by evolutionists] have to take two million years?" * Blue Eyes Originated Not So Long Ago: Not a million years ago, nor a hundred thousand years ago, but based on a peer-reviewed paper in Human Genetics, a press release at Science Daily reports that, "research shows that people with blue eyes have a single, common ancestor. A team at the University of Copenhagen have tracked down a genetic mutation which took place 6-10,000 years ago and is the cause of the eye colour of all blue-eyed humans alive on the planet today." * Adding the Entire Universe to our List of Not So Old Things? Based on March 2019 findings from Hubble, Nobel laureate Adam Riess of the Space Telescope Science Institute and his co-authors in the Astrophysical Journal estimate that the universe is about a billion years younger than previously thought! Then in September 2019 in the journal Science, the age dropped precipitiously to as low as 11.4 billion years! Of course, these measurements also further squeeze the canonical story of the big bang chronology with its many already existing problems including the insufficient time to "evolve" distant mature galaxies, galaxy clusters, superclusters, enormous black holes, filaments, bubbles, walls, and other superstructures. So, even though the latest estimates are still absurdly too old (Google: big bang predictions, and click on the #1 ranked article, or just go on over there to rsr.org/bb), regardless, we thought we'd plop the whole universe down on our List of Not So Old Things!   * After the Soft Tissue Discoveries, NOW Dino DNA: When a North Carolina State University paleontologist took the Tyrannosaurus Rex photos to the right of original biological material, that led to the 2016 discovery of dinosaur DNA, So far researchers have also recovered dinosaur blood vessels, collagen, osteocytes, hemoglobin, red blood cells, and various proteins. As of May 2018, twenty-six scientific journals, including Nature, Science, PNAS, PLoS One, Bone, and Journal of Vertebrate Paleontology, have confirmed the discovery of biomaterial fossils from many dinosaurs! Organisms including T. Rex, hadrosaur, titanosaur, triceratops, Lufengosaur, mosasaur, and Archaeopteryx, and many others dated, allegedly, even hundreds of millions of years old, have yielded their endogenous, still-soft biological material. See the web's most complete listing of 100+ journal papers (screenshot, left) announcing these discoveries at bflist.rsr.org and see it in layman's terms at rsr.org/soft. * Rapid Stalactites, Stalagmites, Etc.: A construction worker in 1954 left a lemonade bottle in one of Australia's famous Jenolan Caves. By 2011 it had been naturally transformed into a stalagmite (below, right). Increasing scientific knowledge is arguing for rapid cave formation (see below, Nat'l Park Service shrinks Carlsbad Caverns formation estimates from 260M years, to 10M, to 2M, to it "depends"). Likewise, examples are growing of rapid formations with typical chemical make-up (see bottle, left) of classic stalactites and stalagmites including:- in Nat'l Geo the Carlsbad Caverns stalagmite that rapidly covered a bat - the tunnel stalagmites at Tennessee's Raccoon Mountain - hundreds of stalactites beneath the Lincoln Memorial - those near Gladfelter Hall at Philadelphia's Temple University (send photos to Bob@rsr.org) - hundreds of stalactites at Australia's zinc mine at Mt. Isa.   - and those beneath Melbourne's Shrine of Remembrance. * Most Human Mutations Arose in 200 Generations: From Adam until Real Science Radio, in only 200 generations! The journal Nature reports The Recent Origin of Most Human Protein-coding Variants. As summarized by geneticist co-author Joshua Akey, "Most of the mutations that we found arose in the last 200 generations or so" (the same number previously published by biblical creationists). Another 2012 paper, in the American Journal of Physical Anthropology (Eugenie Scott's own field) on High mitochondrial mutation rates, shows that one mitochondrial DNA mutation occurs every other generation, which, as creationists point out, indicates that mtEve would have lived about 200 generations ago. That's not so old! * National Geographic's Not-So-Old Hard-Rock Canyon at Mount St. Helens: As our List of Not So Old Things (this web page) reveals, by a kneejerk reaction evolutionary scientists assign ages of tens or hundreds of thousands of years (or at least just long enough to contradict Moses' chronology in Genesis.) However, with closer study, routinely, more and more old ages get revised downward to fit the world's growing scientific knowledge. So the trend is not that more information lengthens ages, but rather, as data replaces guesswork, ages tend to shrink until they are consistent with the young-earth biblical timeframe. Consistent with this observation, the May 2000 issue of National Geographic quotes the U.S. Forest Service's scientist at Mount St. Helens, Peter Frenzen, describing the canyon on the north side of the volcano. "You'd expect a hard-rock canyon to be thousands, even hundreds of thousands of years old. But this was cut in less than a decade." And as for the volcano itself, while again, the kneejerk reaction of old-earthers would be to claim that most geologic features are hundreds of thousands or millions of years old, the atheistic National Geographic magazine acknowledges from the evidence that Mount St. Helens, the volcanic mount, is only about 4,000 years old! See below and more at rsr.org/mount-st-helens. * Mount St. Helens Dome Ten Years Old not 1.7 Million: Geochron Laboratories of Cambridge, Mass., using potassium-argon and other radiometric techniques claims the rock sample they dated, from the volcano's dome, solidified somewhere between 340,000 and 2.8 million years ago. However photographic evidence and historical reports document the dome's formation during the 1980s, just ten years prior to the samples being collected. With the age of this rock known, radiometric dating therefore gets the age 99.99999% wrong. * Devils Hole Pupfish Isolated Not for 13,000 Years But for 100: Secular scientists default to knee-jerk, older-than-Bible-age dates. However, a tiny Mojave desert fish is having none of it. Rather than having been genetically isolated from other fish for 13,000 years (which would make this small school of fish older than the Earth itself), according to a paper in the journal Nature, actual measurements of mutation rates indicate that the genetic diversity of these Pupfish could have been generated in about 100 years, give or take a few. * Polystrates like Spines and Rare Schools of Fossilized Jellyfish: Previously, seven sedimentary layers in Wisconsin had been described as taking a million years to form. And because jellyfish have no skeleton, as Charles Darwin pointed out, it is rare to find them among fossils. But now, reported in the journal Geology, a school of jellyfish fossils have been found throughout those same seven layers. So, polystrate fossils that condense the time of strata deposition from eons to hours or months, include: - Jellyfish in central Wisconsin were not deposited and fossilized over a million years but during a single event quick enough to trap a whole school. (This fossil school, therefore, taken as a unit forms a polystrate fossil.) Examples are everywhere that falsify the claims of strata deposition over millions of years. - Countless trilobites buried in astounding three dimensionality around the world are meticulously recovered from limestone, much of which is claimed to have been deposited very slowly. Contrariwise, because these specimens were buried rapidly in quickly laid down sediments, they show no evidence of greater erosion on their upper parts as compared to their lower parts.- The delicacy of radiating spine polystrates, like tadpole and jellyfish fossils, especially clearly demonstrate the rapidity of such strata deposition. - A second school of jellyfish, even though they rarely fossilized, exists in another locale with jellyfish fossils in multiple layers, in Australia's Brockman Iron Formation, constraining there too the rate of strata deposition. By the way, jellyfish are an example of evolution's big squeeze. Like galaxies evolving too quickly, galaxy clusters, and even human feet (which, like Mummy DNA, challenge the Out of Africa paradigm), jellyfish have gotten into the act squeezing evolution's timeline, here by 200 million years when they were found in strata allegedly a half-a-billion years old. Other examples, ironically referred to as Medusoid Problematica, are even found in pre-Cambrian strata. - 171 tadpoles of the same species buried in diatoms. - Leaves buried vertically through single-celled diatoms powerfully refute the claimed super-slow deposition of diatomaceous rock. - Many fossils, including a Mesosaur, have been buried in multiple "varve" layers, which are claimed to be annual depositions, yet they show no erosional patterns that would indicate gradual burial (as they claim, absurdly, over even thousands of years). - A single whale skeleton preserved in California in dozens of layers of diatom deposits thus forming a polystrate fossil. - 40 whales buried in the desert in Chile. "What's really interesting is that this didn't just happen once," said Smithsonian evolutionist Dr. Nick Pyenson. It happened four times." Why's that? Because "the fossil site has at least four layers", to which Real Science Radio's Bob Enyart replies: "Ha ha ha ha ha ha ha ha ha ha ha", with RSR co-host Fred Williams thoughtfully adding, "Ha ha!" * Polystrate Trees: Examples abound around the world of polystrate trees:  - Yellowstone's petrified polystrate forest (with the NPS exhibit sign removed; see below) with successive layers of rootless trees demonstrating the rapid deposition of fifty layers of strata. - A similarly formed polystrate fossil forest in France demonstrating the rapid deposition of a dozen strata. - In a thousand locations including famously the Fossil Cliffs of Joggins, Nova Scotia, polystrate fossils such as trees span many strata. - These trees lack erosion: Not only should such fossils, generally speaking, not even exist, but polystrates including trees typically show no evidence of erosion increasing with height. All of this powerfully disproves the claim that the layers were deposited slowly over thousands or millions of years. In the experience of your RSR radio hosts, evolutionists commonly respond to this hard evidence with mocking. See CRSQ June 2006, ICR Impact #316, and RSR 8-11-06 at KGOV.com. * Yellowstone Petrified Trees Sign Removed: The National Park Service removed their incorrect sign (see left and more). The NPS had claimed that in dozens of different strata over a 40-square mile area, many petrified trees were still standing where they had grown. The NPS eventually removed the sign partly because those petrified trees had no root systems, which they would have had if they had grown there. Instead, the trees of this "fossil forest" have roots that are abruptly broken off two or three feet from their trunks. If these mature trees actually had been remnants of sequential forests that had grown up in strata layer on top of strata layer, 27 times on Specimen Ridge (and 50 times at Specimen Creek), such a natural history implies passage of more time than permitted by biblical chronology. So, don't trust the National Park Service on historical science because they're wrong on the age of the Earth. * Wood Petrifies Quickly: Not surprisingly, by the common evolutionary knee-jerk claim of deep time, "several researchers believe that several millions of years are necessary for the complete formation of silicified wood". Our List of Not So Old and Not So Slow Things includes the work of five Japanese scientists who proved creationist research and published their results in the peer-reviewed journal Sedimentary Geology showing that wood can and does petrify rapidly. Modern wood significantly petrified in 36 years these researchers concluded that wood buried in strata could have been petrified in "a fairly short period of time, in the order of several tens to hundreds of years." * The Scablands: The primary surface features of the Scablands, which cover thousands of square miles of eastern Washington, were long believed to have formed gradually. Yet, against the determined claims of uniformitarian geologists, there is now overwhelming evidence as presented even in a NOVA TV program that the primary features of the Scablands formed rapidly from a catastrophic breach of Lake Missoula causing a massive regional flood. Of course evolutionary geologists still argue that the landscape was formed over tens of thousands of years, now by claiming there must have been a hundred Missoula floods. However, the evidence that there was Only One Lake Missoula Flood has been powerfully reinforced by a University of Colorado Ph.D. thesis. So the Scablands itself is no longer available to old-earthers as de facto evidence for the passage of millions of years. * The Heart Mountain Detachment: in Wyoming just east of Yellowstone, this mountain did not break apart slowly by uniformitarian processes but in only about half-an-hour as widely reported including in the evolutionist LiveScience.com, "Land Speed Record: Mountain Moves 62 Miles in 30 Minutes." The evidence indicates that this mountain of rock covering 425 square miles rapidly broke into 50 pieces and slid apart over an area of more than 1,300 square miles in a biblical, not a "geological," timeframe.  * "150 Million" year-old Squid Ink Not Decomposed: This still-writable ink had dehydrated but had not decomposed! The British Geological Survey's Dr. Phil Wilby, who excavated the fossil, said, "It is difficult to imagine how you can have something as soft and sloppy as an ink sac fossilised in three dimensions, still black, and inside a rock that is 150 million years old." And the Daily Mail states that, "the black ink was of exactly the same structure as that of today's version", just desiccated. And Wilby added, "Normally you would find only the hard parts like the shell and bones fossilised but... these creatures... can be dissected as if they are living animals, you can see the muscle fibres and cells. It is difficult to imagine... The structure is similar to ink from a modern squid so we can write with it..." Why is this difficult for evolutionists to imagine? Because as Dr. Carl Wieland writes, "Chemical structures 'fall apart' all by themselves over time due to the randomizing effects of molecular motion." Decades ago Bob Enyart broadcast a geology program about Mount St. Helens' catastrophic destruction of forests and the hydraulic transportation and upright deposition of trees. Later, Bob met the chief ranger from Haleakala National Park on Hawaii's island of Maui, Mark Tanaka-Sanders. The ranger agreed to correspond with his colleague at Yellowstone to urge him to have the sign removed. Thankfully, it was then removed. (See also AIG, CMI, and all the original Yellowstone exhibit photos.) Groundbreaking research conducted by creation geologist Dr. Steve Austin in Spirit Lake after Mount St. Helens eruption provided a modern-day analog to the formation of Yellowstone fossil forest. A steam blast from that volcano blew over tens of thousands of trees leaving them without attached roots. Many thousands of those trees were floating upright in Spirit Lake, and began sinking at varying rates into rapidly and sporadically deposited sediments. Once Yellowstone's successive forest interpretation was falsified (though like with junk DNA, it's too big to fail, so many atheists and others still cling to it), the erroneous sign was removed. * Asiatic vs. European Honeybees: These two populations of bees have been separated supposedly for seven million years. A researcher decided to put the two together to see what would happen. What we should have here is a failure to communicate that would have resulted after their "language" evolved over millions of years. However, European and Asiatic honeybees are still able to communicate, putting into doubt the evolutionary claim that they were separated over "geologic periods." For more, see the Public Library of Science, Asiatic Honeybees Can Understand Dance Language of European Honeybees. (Oh yeah, and why don't fossils of poorly-formed honeycombs exist, from the millions of years before the bees and natural selection finally got the design right? Ha! Because they don't exist! :) Nautiloid proves rapid limestone formation. * Remember the Nautiloids: In the Grand Canyon there is a limestone layer averaging seven feet thick that runs the 277 miles of the canyon (and beyond) that covers hundreds of square miles and contains an average of one nautiloid fossil per square meter. Along with many other dead creatures in this one particular layer, 15% of these nautiloids were killed and then fossilized standing on their heads. Yes, vertically. They were caught in such an intense and rapid catastrophic flow that gravity was not able to cause all of their dead carcasses to fall over on their sides. Famed Mount St. Helens geologist Steve Austin is also the world's leading expert on nautiloid fossils and has worked in the canyon and presented his findings to the park's rangers at the invitation of National Park Service officials. Austin points out, as is true of many of the world's mass fossil graveyards, that this enormous nautiloid deposition provides indisputable proof of the extremely rapid formation of a significant layer of limestone near the bottom of the canyon, a layer like the others we've been told about, that allegedly formed at the bottom of a calm and placid sea with slow and gradual sedimentation. But a million nautiloids, standing on their heads, literally, would beg to differ. At our sister stie, RSR provides the relevant Geologic Society of America abstract, links, and video. *  Now It's Allegedly Two Million Year-Old Leaves: "When we started pulling leaves out of the soil, that was surreal, to know that it's millions of years old..." sur-re-al: adjective: a bizarre mix of fact and fantasy. In this case, the leaves are the facts. Earth scientists from Ohio State and the University of Minnesota say that wood and leaves they found in the Canadian Arctic are at least two million years old, and perhaps more than ten million years old, even though the leaves are just dry and crumbly and the wood still burns! * Gold Precipitates in Veins in Less than a Second: After geologists submitted for decades to the assumption that each layer of gold would deposit at the alleged super slow rates of geologic process, the journal Nature Geoscience reports that each layer of deposition can occur within a few tenths of a second. Meanwhile, at the Lihir gold deposit in Papua New Guinea, evolutionists assumed the more than 20 million ounces of gold in the Lihir reserve took millions of years to deposit, but as reported in the journal Science, geologists can now demonstrate that the deposit could have formed in thousands of years, or far more quickly! Iceland's not-so-old Surtsey Island looks ancient. * Surtsey Island, Iceland: Of the volcanic island that formed in 1963, New Scientist reported in 2007 about Surtsey that "geographers... marvel that canyons, gullies and other land features that typically take tens of thousands or millions of years to form were created in less than a decade." Yes. And Sigurdur Thorarinsson, Iceland's chief  geologist, wrote in the months after Surtsey formed, "that the time scale," he had been trained "to attach to geological developments is misleading." [For what is said to] take thousands of years... the same development may take a few weeks or even days here [including to form] a landscape... so varied and mature that it was almost beyond belief... wide sandy beaches and precipitous crags... gravel banks and lagoons, impressive cliffs… hollows, glens and soft undulating land... fractures and faultscarps, channels and screes… confounded by what met your eye... boulders worn by the surf, some of which were almost round... -Iceland's chief geologist * The Palouse River Gorge: In the southeast of Washington State, the Palouse River Gorge is one of many features formed rapidly by 500 cubic miles of water catastrophically released with the breaching of a natural dam in the Lake Missoula Flood (which gouged out the Scablands as described above). So, hard rock can be breached and eroded rapidly. * Leaf Shapes Identical for 190 Million Years?  From Berkley.edu, "Ginkgo biloba... dates back to... about 190 million years ago... fossilized leaf material from the Tertiary species Ginkgo adiantoides is considered similar or even identical to that produced by modern Ginkgo biloba trees... virtually indistinguishable..." The literature describes leaf shapes as "spectacularly diverse" sometimes within a species but especially across the plant kingdom. Because all kinds of plants survive with all kinds of different leaf shapes, the conservation of a species retaining a single shape over alleged deep time is a telling issue. Darwin's theory is undermined by the unchanging shape over millions of years of a species' leaf shape. This lack of change, stasis in what should be an easily morphable plant trait, supports the broader conclusion that chimp-like creatures did not become human beings and all the other ambitious evolutionary creation of new kinds are simply imagined. (Ginkgo adiantoides and biloba are actually the same species. Wikipedia states, "It is doubtful whether the Northern Hemisphere fossil species of Ginkgo can be reliably distinguished." For oftentimes, as documented by Dr. Carl Werner in his Evolution: The Grand Experiment series, paleontogists falsely speciate identical specimens, giving different species names, even different genus names, to the fossil and living animals that appear identical.) * Box Canyon, Idaho: Geologists now think Box Canyon in Idaho, USA, was carved by a catastrophic flood and not slowly over millions of years with 1) huge plunge pools formed by waterfalls; 2) the almost complete removal of large basalt boulders from the canyon; 3) an eroded notch on the plateau at the top of the canyon; and 4) water scour marks on the basalt plateau leading to the canyon. Scientists calculate that the flood was so large that it could have eroded the whole canyon in as little as 35 days. See the journal Science, Formation of Box Canyon, Idaho, by Megaflood, and the Journal of Creation, and Creation Magazine. * Manganese Nodules Rapid Formation: Allegedly, as claimed at the Wikipedia entry from 2005 through 2021: "Nodule growth is one of the slowest of all geological phenomena – in the order of a centimeter over several million years." Wow, that would be slow! And a Texas A&M Marine Sciences technical slide presentation says, “They grow very slowly (mm/million years) and can be tens of millions of years old.” But according to a World Almanac documentary they have formed "around beer cans," said marine geologist Dr. John Yates in the 1997 video Universe Beneath the Sea: The Next Frontier. There are also reports of manganese nodules forming around ships sunk in the First World War. See more at at youngearth.com, at TOL, in the print edition of the Journal of Creation, and in this typical forum discussion with atheists (at the Chicago Cubs forum no less :). * "6,000 year-old" Mitochondrial Eve: As the Bible calls "Eve... the mother of all living" (Gen. 3:20), genetic researchers have named the one woman from whom all humans have descended "Mitochondrial Eve." But in a scientific attempt to date her existence, they openly admit that they included chimpanzee DNA in their analysis in order to get what they viewed as a reasonably old date of 200,000 years ago (which is still surprisingly recent from their perspective, but old enough not to strain Darwinian theory too much). But then as widely reported including by Science magazine, when they dropped the chimp data and used only actual human mutation rates, that process determined that Eve lived only six thousand years ago! In Ann Gibbon's Science article, "Calibrating the Mitochondrial Clock," rather than again using circular reasoning by assuming their conclusion (that humans evolved from ape-like creatures), they performed their calculations using actual measured mutation rates. This peer-reviewed journal then reported that if these rates have been constant, "mitochondrial Eve… would be a mere 6000 years old." See also the journal Nature and creation.com's "A shrinking date for Eve," and Walt Brown's assessment. Expectedly though, evolutionists have found a way to reject their own unbiased finding (the conclusion contrary to their self-interest) by returning to their original method of using circular reasoning, as reported in the American Journal of Human Genetics, "calibrating against recent evidence for the divergence time of humans and chimpanzees,"  to reset their mitochondrial clock back to 200,000 years. * Even Younger Y-Chromosomal Adam: (Although he should be called, "Y-Chromosomal Noah.") While we inherit our mtDNA only from our mothers, only men have a Y chromosome (which incidentally genetically disproves the cla

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The Wild Episode
Olm : Larval Dragons in Black and White

The Wild Episode

Play Episode Listen Later Apr 21, 2021 36:50


The olm (Proteus anguinus) is a very unusual animal: a large cave salamander, with an extraordinary life and an interesting history of research, that comes in (at least) two very different forms: the white olm and the black. Subscribe to the show to make sure you don't miss any future Wild Episodes, and e-mail your comments, corrections, suggestions or feedback to help make those future episodes better! You can also follow the show on Facebook or Twitter. Music Opening & Closing Themes: Running Waters and Acoustic Meditation by Audionautix (Jason Shaw), from audionautix.com. CC BY 3.0. Modified versions of: Ah by Mystery Mammal, CC BY 4.0. Disintegration and Silent Turmoil by Myuu, CC BY 3.0. They Call It Nature and Raise Your Hand If You Think Evil Is Increasing In This World by Chris Zabriskie, CC BY 4.0 www.thewildepisode.com

Radio Darkitalia
Kombatron - Larval State (12.02.'21.) by Dj Hordak

Radio Darkitalia

Play Episode Listen Later Feb 16, 2021 61:00


Kombatron podcast show by Dj Hordak

Radio Darkitalia
Kombatron - Larval State (12.02.'21.) by Dj Hordak

Radio Darkitalia

Play Episode Listen Later Feb 16, 2021 61:00


Kombatron podcast show by Dj Hordak

Radio Darkitalia
Kombatron - Larval State (12.02.'21.) by Dj Hordak

Radio Darkitalia

Play Episode Listen Later Feb 16, 2021 61:00


Kombatron podcast show by Dj Hordak

Player One Podcast
734: Miles Morales (PS4/5) Spoilercast

Player One Podcast

Play Episode Listen Later Dec 1, 2020 99:31


This week! The hosts and guest Chris Baker spend the ENTIRE episode having a spoiler-filled discussion about Miles Morales, Insomniac Games’ latest release for the PlayStation 4 (and 5!). This includes spoilers for Insomniac’s 2018 Spider-Man game as well. Join us, won’t you? Links of interest: CBake on Twitter WRONG! Retro Games, You Messed Up Our Comic Book Heroes! Spectacular Spider-Man TV series Sam Raimi Spider-Man Jefferson Davis Fogwell’s Gym Hailey in MM Black Mariah Cans in Speed Ned Ganke  Donald Glover Prowler The Prowler New Mutants offshoot Fallen Angels Bill the Lobster Metamorpho  Comics on consoles podcast Symkaria  Larval universe Spider-Ham Greg Sewart’s Extra Life Page The Player One Podcast t-shirt The Player One Podcast mug ResetEra Player One Podcast Topic Player One Podcast Discord Greg Streams on Twitch The Pioneer LaserActive - Generation 16 Episode #121 Add us in Apple Podcasts Check out Greg's web series Generation 16 - click here. And take a trip over to Phil's YouTube Channel to see some awesome retro game vids. Own an iPhone/iPod touch? We've got an app for that--the Player One Podcast player app is available now. Play shows new and old, read show notes, access the show Twitter, website, email, and more! Click here to download. Follow us on twitter at twitter.com/p1podcast. Thanks for listening! Don't forget to visit our new web site at www.playeronepodcast.com. Running time: 01:39:30

The Fisheries Podcast
095: Modeling the Movements of Larval Fish with Kelly Vasbinder

The Fisheries Podcast

Play Episode Listen Later Nov 15, 2020 44:56


In this episode Julie chats with Kelly Vasbinder about how she got her start in fisheries (It was through a camp for middle school girls!), her favorite part of her dissertation (coding a legrangian model for larval fish distribution) and what she's looking forward to in her postdoc on salmon! Her main point: The problem may be more complicated than you think, but the solution is almost certainly more simple!   Get in touch with Kelly: kmvasbinder@usf.edu Julie: @FishVecchio on twitter Podcast: @FisheriesPod on twitter Become a Patron of the Fisheries Podcast here: https://www.patreon.com/FisheriesPodcast Buy podcast merch: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic music.  

PaperPlayer biorxiv neuroscience
Interspecies variation of larval locomotion kinematics in the genus Drosophila and its relation to habitat temperature

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Nov 6, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.11.06.371120v1?rss=1 Authors: Matsuo, Y., Nose, A., Kohsaka, H. Abstract: Speed and trajectory of locomotion are characteristic traits of individual species. During evolution, locomotion kinematics is likely to have been tuned for survival in the habitats of each species. Although kinematics of locomotion is thought to be influenced by habitats, the quantitative relation between the kinematics and environmental factors has not been fully revealed. Here, we performed comparative analyses of larval locomotion in 11 Drosophila species. We found that larval locomotion kinematics are divergent among the species. The diversity is not correlated to the body length but is correlated instead to the minimum habitat temperature of the species. Phylogenetic analyses using Bayesian inference suggest that the evolutionary rate of the kinematics is diverse among phylogenetic trees. The results of this study imply that the kinematics of larval locomotion has diverged in the evolutionary history of the genus Drosophila and evolved under the effects of the minimum ambient temperature of habitats. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
Associative learning in larval and adult Drosophila is impaired by the dopamine-synthesis inhibitor 3-Iodo-L-tyrosine

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Oct 27, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.10.26.354688v1?rss=1 Authors: Thoener, J., Koenig, C., Weiglein, A., Toshima, N., Mancini, N., Amin, F., Schleyer, M. Abstract: Across the animal kingdom, dopamine plays a crucial role in conferring reinforcement signals that teach animals about the causal structure of the world. In the fruit fly Drosophila melanogaster, the dopamine system has largely been studied using a rich genetic toolbox. Here, we suggest a complementary pharmacological approach applying the dopamine-synthesis inhibitor 3-Iodo-L-tyrosine (3IY), which causes acute systemic inhibition of dopamine signaling. Using Pavlovian conditioning, across developmental stages (3rd instar larva versus adult), valence domains (reward versus punishment), and types of reinforcement (natural versus optogenetically induced), we find that 3IY feeding specifically impairs associative learning, whereas additional feeding of L-3,4-dihydroxyphenylalanine (L-DOPA), a precursor of dopamine, rescues this impairment. This study establishes a simple, quick, and comparably low-cost approach that can be combined with the available genetic tools to manipulate and clarify the functions of the dopaminergic system - in D. melanogaster and other animals. Copy rights belong to original authors. Visit the link for more info

Enfermagem Informa
Ep. 15 - Terapia Larval

Enfermagem Informa

Play Episode Listen Later Oct 19, 2020 40:34


A Terapia Larval é um procedimento terapêutico, indicada para qualquer tipo de ferida, desde que bem avaliada por um profissional capacitado. É uma terapia que possibilita uma cicatrização 18 vezes mais rápida que uma terapia convencional. A larva é capaz de desbridar, combater a infecção, controlar o exsudato, além de secretar substâncias estimulantes da neoangiogênese, aumentar a microcirculação local e muito mais. Para falar dessa Terapia teremos a Doutora Julianny Ferraz, enfermeira pioneira na terapia larval no Brasil. Ícone feito por geotatah do www.flaticon.com

PaperPlayer biorxiv neuroscience
Altered visual function in a larval zebrafish knockout of neurodevelopmental risk gene pdzk1

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Sep 22, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.09.21.307405v1?rss=1 Authors: Xie, J., Jusuf, P. R., Bui, B. V., Dudczig, S., Goodbourn, P. T. Abstract: The human PDZK1 gene is located in a genomic susceptibility region for neurodevelopmental disorders. A genome-wide association study (GWAS) identified links between PDZK1 polymorphisms and altered visual contrast sensitivity, an endophenotype for schizophrenia and autism spectrum disorder. The PDZK1 protein is implicated in neurological functioning, interacting with synaptic molecules including post-synaptic density 95 (PSD-95), N-methyl-D-aspartate receptors (NMDAR), corticotropin-releasing factor receptor 1 (CRFR1) and serotonin 2A receptors. To elucidate the role of PDZK1, we generated pdzk1-knockout (pdzk1-KO) zebrafish using CRISPR/Cas-9 genome editing. Visual function of 7-day-old fish was assessed at behavioural and functional levels using the optomotor response (OMR) and scotopic electroretinogram (ERG). We also quantified retinal morphology and densities of PSD-95, NMDAR1, CRFR1 and serotonin in the synaptic inner plexiform layer at 7 days, 4 weeks and 8 weeks of age. Relative to wild-type, pdzk1-KO larvae showed spatial-frequency tuning functions with increased amplitude (likely due to abnormal gain control) and reduced ERG b-waves (suggestive of inner retinal dysfunction). However, these functional differences were not associated with gross synaptic or morphological retinal phenotypes. The findings corroborate a role for pdzk1 in visual function, and our model system provides a platform for investigating other genes associated with abnormal visual behaviour. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
Broad frequency sensitivity and complex neural coding in the larval zebrafish auditory system

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Sep 19, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.09.17.301242v1?rss=1 Authors: Poulsen, R. E., Scholz, L. A., Constantin, L., Favre-Bulle, I. A., Vanwalleghem, G., Scott, E. K. Abstract: Most animals have complex auditory systems that identify salient features of the acoustic landscape to direct appropriate responses. In fish, these features include the volume, frequency, complexity, and temporal structure of auditory stimuli transmitted through water. Larval fish have simple brains compared to adults, but swim freely and depend on sophisticated sensory processing for survival. Zebrafish larvae, an important model for studying brain-wide neural networks, have thus far been found to possess a rudimentary auditory system, sensitive to a narrow range of frequencies and without evident sensitivity to auditory features that are salient and ethologically important to adult fish. Here, we have combined a novel method for delivering water-borne sounds, a diverse assembly of acoustic stimuli, and whole-brain calcium imaging to describe the responses of individual auditory neurons across the brains of zebrafish larvae. Our results reveal responses to frequencies ranging from 100Hz to 4kHz, with evidence of frequency discrimination from 100Hz to 2.5kHz. Frequency-selective neurons are located in numerous regions of the brain, and neurons responsive to the same frequency are spatially grouped in some regions. Using functional clustering, we identified categories of neurons that are selective for pure tones of a single frequency, white noise, the sharp onset of auditory stimuli, and stimuli involving a gradual crescendo. These results suggest a more nuanced auditory system than has previously been described in larval fish and provide insights into how a young animals auditory system can both function acutely and serve as the scaffold of a more complex adult system. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
Neuronal Odor Coding in the Larval Sensory Cone of Anopheles coluzzii: Complex Responses from a Simple System

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Sep 10, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.09.09.290544v1?rss=1 Authors: Sun, H., Liu, F., Baker, A. P., Zwiebel, L. Abstract: Anopheles mosquitoes are the sole vectors of malaria and other diseases that represent significant threats to global public health. While adult female mosquitoes are responsible for disease transmission, the pre-adult larval stages of the malaria vector Anopheles coluzzii and other mosquitoes rely on a broad spectrum of sensory cues to navigate their aquatic habitats efficiently to avoid predators and search for food. Of these, mosquito larvae rely heavily on volatile chemical signals that directly activate their olfactory apparatus. Because most studies on mosquito olfaction focus on adults, a paucity of attention has been given to the larval olfactory system, in which the peripheral components are associated with the sensory cone of the larval antennae. To address this, we have investigated the electrophysiological response profile of the larval sensory cone in Anopheles mosquitoes. We found that the larval sensory cone is particularly tuned to alcohols, thiazoles and heterocyclics. Furthermore, these responses can be assigned to discrete groups of sensory cone neurons with distinctive, dose-dependent odorant-response profiles that also provide larvae with the ability to discriminate among compounds with similar chemical structures. A correlation analysis was conducted to determine the relationship between specific larval chemosensory receptors and the response profiles of sensory cone neuron groups. These studies reveal that the larval sensory cone is a highly sophisticated organ that is sensitive to a broad range of compounds and is capable of a remarkable degree of chemical discrimination. Taken together, this study presents critical insights into olfactory coding processes in An. coluzzii larvae that further our understanding of larval chemical ecology and will contribute to the development of novel larval-based strategies and tools for mosquito control and the reduction of vector-borne disease transmission. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv biophysics
A physical theory of larval Drosophila behaviour

PaperPlayer biorxiv biophysics

Play Episode Listen Later Aug 25, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.08.25.266163v1?rss=1 Authors: Loveless, J., Garner, A., Issa, A. R., Webb, B., Ohyama, T., Alonso, C. Abstract: All animal movement must ultimately be governed by physical laws. As a basis for understanding the interactions between the nervous system, musculature, body mechanics and the environment that govern behaviour in the fruit fly larva, we here develop an effective theory for the physics of its motion in three dimensions. We start by defining a set of fields which quantify stretching, bending and twisting along the larva's anteroposterior (AP) axis. We then perform a search in the space of possible physical theories that could govern these fields, by using symmetry considerations, stability requirements and physical reasoning to rule out possible terms in our theory's Lagrangian (which governs its energy-conservative physics) and Rayleigh function (which governs its energy-dissipative physics). We restrict attention to the physics that dominates at long-wavelengths, which allows us to arrive at a unique, simple theory of the larval midline, governed by a minimum of phenomenological parameters that capture both purely biomechanical as well as neuromuscular effects. Owing to the simplicity of our theory, we are able to derive most of our results analytically. The model makes strong quantitative predictions for the dynamics of peristalsis, rolling, and self-righting, and also successfully predicts statistical properties of these behaviours and of unbiased substrate exploration. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
Larval zebrafish use olfactory detection of sodium and chloride to avoid salt-water

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Aug 20, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.08.19.258061v1?rss=1 Authors: Herrera, K. J., Panier, T., Guggiana-Nilo, D., Engert, F. Abstract: Salinity levels constrain the habitable environment of all aquatic organisms. Zebrafish are freshwater fish that cannot tolerate high salt environments and would, therefore, benefit from neural mechanisms that enable the navigation of salt gradients to avoid high salinity. Yet, zebrafish lack epithelial sodium channels, the primary conduit land animals use to taste sodium. This suggests fish may possess novel, undescribed mechanisms for salt detection. In the present study, we show that zebrafish, indeed, respond to small temporal increases in salt by reorienting more frequently. Further, we use calcium imaging techniques to identify the olfactory system as the primary sense used for salt detection, and we find that a specific subset of olfactory receptor neurons encodes absolute salinity concentrations by detecting monovalent anions and cations. In summary, our study establishes that zebrafish larvae have the ability to navigate, and thus detect salinity gradients, and that this is achieved through previously undescribed sensory mechanisms for salt detection. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv genetics
Assessment of autism zebrafish mutant models using a high-throughput larval phenotyping platform

PaperPlayer biorxiv genetics

Play Episode Listen Later Jul 23, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.07.23.217273v1?rss=1 Authors: Colon-Rodriguez, A., Uribe-Salazar, J. M., Weyenberg, K. B., Sriram, A., Quezada, A., Kaya, G., Jao, E., Radke, B., Lein, P. J., Dennis, M. Abstract: In recent years zebrafish have become commonly used as a model for studying human traits and disorders. Their small size, high fecundity, and rapid development allow for more high-throughput experiments compared to other vertebrate models. Given that zebrafish share >70% gene homologs with humans and their genomes can be readily edited using highly efficient CRISPR methods, we are now able to rapidly generate mutations impacting practically any gene of interest. Unfortunately, our ability to phenotype mutant larvae has not kept pace. To address this challenge, we have developed a protocol that obtains multiple phenotypic measurements from individual zebrafish larvae in an automated and parallel fashion, including morphological features (i.e., body length, eye area, and head size) and movement/behavior. By assaying wild-type zebrafish in a variety of conditions, we determined optimal parameters that avoid significant developmental defects or physical damage; these include morphological imaging of larvae at two time points (3 days post fertilization (dpf) and 5 dpf) coupled with motion tracking of behavior at 5 dpf. As a proof-of-principle, we tested our approach on two novel CRISPR-generated mutant zebrafish lines carrying predicted null-alleles of syngap1b and slc7a5, orthologs to two human genes implicated in autism-spectrum disorder, intellectual disability, and epilepsy. Using our optimized high-throughput phenotyping protocol, we recapitulated previously published results from mouse and zebrafish models of these candidate genes. In summary, we describe a rapid parallel pipeline to characterize morphological and behavioral features of individual larvae in a robust and consistent fashion, thereby improving our ability to better identify genes important in human traits and disorders. AUTHOR SUMMARYZebrafish (Danio rerio) are a well-established model organism for the study of neurodevelopmental disorders. Due to their small size, fast reproduction, and genetic homology with humans, zebrafish have been widely used for characterizing and screening candidate genes for many disorders, including autism-spectrum disorder, intellectual disability, and epilepsy. Although several studies have described the use of high-throughput morphological and behavioral assays, few combine multiple assays in a single zebrafish larva. Here, we optimized a platform to characterize morphometric features at two developmental time points in addition to behavioral traits of zebrafish larvae. We then used this approach to characterize two autism candidate genes (SYNGAP1 and SLC7A5) in two CRISPR-generated zebrafish null mutant models we developed in house. These data recapitulate previously published results related to enhanced seizure activity, while identifying additional defects not previously reported. We propose that our phenotyping platform represents a feasible method for maximizing the use of single zebrafish larvae in the characterization of additional mutants relevant to neurodevelopmental disorders. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
Algorithms underlying flexible phototaxis in larval zebrafish

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Jul 19, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.07.18.210260v1?rss=1 Authors: Chen, A. B., Deb, D., Bahl, A., Engert, F. Abstract: To thrive, organisms must maintain physiological and environmental variables in optimal ranges. However, in a dynamic world, the optimal range of a variable might fluctuate depending on the organism's state or environmental conditions. Given these fluctuations, how do biological control systems maintain optimal control of physiological and environmental variables? We explored this question by studying the phototactic behavior of larval zebrafish. We demonstrate, with behavioral experiments and computational modeling, that larval zebrafish use phototaxis to maintain environmental luminance at a set point that depends on luminance history. We further show that fish compute this set point using information from both eyes, and that the set point fluctuates on a timescale of seconds when environmental luminance changes. These results expand on previous studies, where phototaxis was found to be primarily positive, and suggest that larval zebrafish, rather than consistently turning towards the brighter areas, exert homeostatic control over the luminance of their surroundings. Furthermore, we show that fluctuations in the surrounding luminance feed back on the system to drive allostatic changes to the luminance set point. Our work has uncovered a novel principle underlying phototaxis in larval zebrafish and characterized a behavioral algorithm by which larval zebrafish exert control over a sensory variable. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
A neuromechanical model and kinematic analyses for Drosophila larval crawling based on physical measurements

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Jul 17, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.07.17.208611v1?rss=1 Authors: Sun, X., Liu, Y., Liu, C., Mayumi, K., Ito, K., Nose, A., Kohsaka, H. Abstract: Animal locomotion requires dynamic interactions between neural circuits, muscles, and surrounding environments. In contrast to intensive studies on neural circuits, the neuromechanical basis for animal behaviour remains unclear due to the lack of information on the physical properties of animals. Here, taking Drosophila larvae as a model system, we proposed an integrated neuromechanical model based on physical measurements. The physical parameters were obtained by a stress-relaxation assay, and the neural circuit motif was extracted from a chain of excitatory and inhibitory interneurons, which was identified previously by connectomics. Based on the model, we systematically performed perturbation analyses on the parameters in the model to study their kinematic effects on locomotion performance. We found that modification of most of the parameters in the simulation could increase the speed of locomotion. Our physical measurement and modelling would provide a new framework for neural circuit studies and soft robot engineering. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
Mechanical overstimulation causes acute injury followed by fast recovery in lateral-line neuromasts of larval zebrafish

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Jul 17, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.07.15.205492v1?rss=1 Authors: Holmgren, M., Ravicz, M. E., Hancock, K. E., Strelkova, O., Indzhykulian, A. A., Warchol, M. E., Sheets, L. Abstract: Noise exposure damages sensory hair cells, resulting in loss of synaptic connections with auditory nerves and hair-cell death. The cellular mechanisms underlying noise-induced hair-cell damage and subsequent repair are not completely understood. Hair cells in neuromasts (NMs) of larval zebrafish are structurally and functionally comparable to mammalian hair cells but undergo robust regeneration following damage. We therefore developed a model for noise-induced hair-cell damage in this highly tractable system. Free swimming larvae exposed to strong water current for 2 hours displayed damage to NMs, including synapse loss, afferent neurite retraction, damaged hair bundles, and reduced mechanotransduction. Overstimulation also elicited an inflammatory response and macrophage recruitment. Remarkably, NM morphology and function appeared to fully recover within 2 days following exposure. Our results reveal morphological and functional changes in mechanically overstimulated lateral-line NMs that are analogous to changes observed in noise-exposed mammalian ear yet are rapidly and completely repaired. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
Electrophysiological validation of premotor interneurons monosynaptically connected to the aCC motoneuron in the Drosophila larval CNS.

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Jun 19, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.06.17.156430v1?rss=1 Authors: Giachello, C. N. G., Zarin, A. A., Kohsaka, H., Fan, Y. N., Nose, A., Landgraf, M., Baines, R. A. Abstract: Mapping the wired connectivity of a nervous system is a prerequisite for full understanding of function. In this respect, such endeavours can be likened to genome sequencing projects. These projects similarly produce impressive amounts of data which, whilst a technical tour-de-force, remain under-utilised without validation. Validation of neuron synaptic connectivity requires electrophysiology which has the necessary temporal and spatial resolution to map synaptic connectivity. However, this technique is not common and requires extensive equipment and training to master, particularly when applied to the small CNS of the Drosophila larva. Thus, validation of connectivity in this CNS has been more reliant on behavioural analyses and, in particular, activity imaging using the calcium-sensor GCaMP. Whilst both techniques are powerful, they each have significant limitations for this purpose. Here we use electrophysiology to validate an array of driver lines reported to label specific premotor interneurons that the Drosophila connectome project suggests are monosynaptically connected to an identified motoneuron termed the anterior corner cell (aCC). Our results validate this proposition for four selected lines. Thus, in addition to validating the connectome with respect to these four premotor interneurons, our study highlights the need to functionally validate driver lines prior to use. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
Multimodal and multisensory coding in the Drosophila larval peripheral gustatory center

PaperPlayer biorxiv neuroscience

Play Episode Listen Later May 22, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.05.21.109959v1?rss=1 Authors: Maier, L., Biocanin, M., Bues, J., Meyenhofer, F., Brunet, C., Kwon, J. Y., Deplancke, B. G., Sprecher, S. G. Abstract: The ability to evaluate food palatability is innate in all animals, ensuring their survival. The external taste organ in Drosophila larvae is composed of only few sensory neurons but enables discrimination between a wide range of chemicals and displays high complexity in receptor gene expression and physiological response profile. It remains largely unknown how the discrepancy between a small neuronal number and the perception of a large sensory space is genetically and physiologically resolved. We tackled dissection of taste sensory coding at organ level with cellular resolution in the fruit fly larva by combining whole-organ calcium imaging and single-cell transcriptomics to map physiological properties and molecular features of individual neurons. About one third of gustatory sense neurons responded to multiple tastants, showing a rather large degree of multimodality within the taste organ. Further supporting the notion of signal integration at the periphery, we observed neuronal deactivation events within simultaneous neighboring responses, suggesting inter-cellular communication through electrical coupling and thus providing an additional level in how neurons may encode taste sensing. Interestingly, we identified neurons responding to both mechanical and taste stimulation, indicating potential multisensory integration. On a molecular level, chemosensory cells show heterogeneity in neuromodulator expression. In addition to a broad cholinergic profile, markers on dopaminergic, glutamatergic or neuropeptidergic pathways are present either in distinct cell populations or are seemingly co-expressed. Our data further extend the sensory capacity of the larval taste system pointing towards an unanticipated degree of multimodal and multisensory coding principles. Copy rights belong to original authors. Visit the link for more info

PaperPlayer biorxiv neuroscience
Larval zebrafish respond to the alarm pheromone Schreckstoff by immobility and a change in brain state

PaperPlayer biorxiv neuroscience

Play Episode Listen Later Apr 25, 2020


Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.04.23.054734v1?rss=1 Authors: Jesuthasan, S. J., Krishnan, S., Cheng, R.-K., Mathuru, A. Abstract: Danger signals elicit an immediate behavioural response as well as a prolonged increase in sensitivity to threats. We investigated the alarm response in larval zebrafish to identify neural circuits underlying such transitions. 5-7 day old larvae react to the alarm substance (Schreckstoff) by increased intervals between swim bouts and extended immobility. Calcium imaging indicates that olfactory sensory neurons innervating a lateral glomerulus detect the substance. Several telencephalic regions including the entopeduncular nucleus are also activated, with sustained activity outlasting stimulus delivery observable in the lateral habenula, posterior tuberculum, superior raphe, locus coeruleus, and periaqueductal gray. Consistent with the idea that these changes are related to an increased sensitivity to threats, larvae show increased dark avoidance after Schreckstoff removal. These results demonstrate that danger cues activate multiple brain circuits in zebrafish resulting in the expression of a continuum of defensive behaviors, some of which extend beyond stimulus detection. Copy rights belong to original authors. Visit the link for more info

Flynns Arcade
Noticias Malucas #27

Flynns Arcade

Play Episode Listen Later Dec 27, 2019 29:23


Boa noite! Começa agora o noticiário mais bagunçado e sem preparo da internet, quiça do mundo! Neste episódio comentaremos sobre um barbeiro sem braços que usa um peixe pênis em estado larval para ligar para a policia enquanto espaço nazis se fingem de gato para roubar sua árvore de Natal com patos ninfomaníacos de chapéu. Comentários? Sugestões? Críticas? Mande um e-mail para: arcade@flynns.com.br Para mais conteúdo acesse: Site: www.flynns.com.br Facebook: facebook.com/canalflynns Instagram: instagram.com/canalflynns Twitter: twitter.com/canalflynns Contato comercial: contato@flynns.com.br

Flynns Arcade
Noticias Malucas #27

Flynns Arcade

Play Episode Listen Later Dec 27, 2019 29:23


Boa noite! Começa agora o noticiário mais bagunçado e sem preparo da internet, quiça do mundo! Neste episódio comentaremos sobre um barbeiro sem braços que usa um peixe pênis em estado larval para ligar para a policia enquanto espaço nazis se fingem de gato para roubar sua árvore de Natal com patos ninfomaníacos de chapéu. Comentários? Sugestões? Críticas? Mande um e-mail para: arcade@flynns.com.br Para mais conteúdo acesse: Site: www.flynns.com.br Facebook: facebook.com/canalflynns Instagram: instagram.com/canalflynns Twitter: twitter.com/canalflynns Contato comercial: contato@flynns.com.br

Tales From The Arcanist
24. Crones in Their Larval State and Donut's End

Tales From The Arcanist

Play Episode Listen Later Dec 12, 2019 15:59


This week, we take a class in both biology and sorcery, and we meditate on the legal rights of the donut.  Love speculative literature? Read hundreds of other science fiction, fantasy, and horror stories online for free at TheArcanist.io. To support our writers, visit Patreon.com/TheArcanist.    Tales From The Arcanist is produced by the editors of The Arcanist. Music by Spaceinvader from Fugue.

Khyber Pass Podcast
Bill Brovold, guitar

Khyber Pass Podcast

Play Episode Listen Later Sep 26, 2019 37:23


Bill Brovold is an educator, visual artist, and composer/musician. He has performed with Rhys Chatham, Arthur Russell, and Glenn Branca; and led the New York band Strange Farm (feat. Billy Ficca of Television and Ernie Brooks of the Modern Lovers) and the six-to-thirteen-member Detroit post rock band Larval, which features his twangy guitar alongside a … Continue reading "Bill Brovold, guitar"

Khyber Pass Podcast
Bill Brovold, guitar

Khyber Pass Podcast

Play Episode Listen Later Sep 25, 2019 37:23


Bill Brovold is an educator, visual artist, and composer/musician. He has performed with Rhys Chatham, Arthur Russell, and Glenn Branca; and led the New York band Strange Farm (feat. Billy Ficca of Television and Ernie Brooks of the Modern Lovers) and the six-to-thirteen-member Detroit post rock band Larval, which features his twangy guitar alongside a …Continue reading "Bill Brovold, guitar"

iBiology Videos
Florian Engert Part 1: Fish in the Matrix: Neuronal Activity and Animal Behavior in Virtual Environments

iBiology Videos

Play Episode Listen Later Aug 8, 2019 27:00


How does the brain translate sensory stimuli into a behavior? In his first iBiology talk, Dr. Florian Engert explains that larval zebrafish are an excellent model to tackle this question. Larval zebrafish are tiny, translucent, and genetically tractable vertebrates.  By making transgenic fish with labelled neurons, it is possible to visualize neuronal activity in the entire brain of a living and awake fish.  Engert introduces the virtual behavior simulators that his lab members use to trigger and measure neuronal activity in the fish.

LabAnimal
3 Minute 3Rs June 2019

LabAnimal

Play Episode Listen Later Jun 20, 2019 4:34


The June episode of 3-Minute 3Rs from the North American 3Rs Collaborative (www.na3rsc.org), the NC3Rs (www.nc3rs.org.uk), and Lab Animal (www.nature.com/laban) Papers; 1. https://bit.ly/2UH4hZt 2. https://go.nature.com/2W5CIea 3. https://bit.ly/2Fi4td4 [LA] On the road to the clinic, immunocompromised mice transplanted with patient-derived xenografts have been a frequent step for testing a drug's efficacy and safety. However, there may soon be fisher options afoot that might help replace some of those mice. Writing in the June issue of the journal Cell, David Langenau and colleagues describe an adult zebrafish xenograft model, into which they successfully engrafted several different solid pediatric tumors. Larval versions had existed before, but an adult model offers a few notable advantages. Bigger fish can bear a larger tumor burden for a longer period of time than the small fry. Adults can be orally gavaged, meaning researchers can know exactly how much of a drug they are getting. And with acclimation, they can handle the heat – the Langenau lab kept them at 37 degrees Celsius, the same temperature a tumor will find in the human body. In the paper, the zebrafish model performed comparably to a murine one. As such, xenografted zebrafish might be valid alternatives to mice, at least at the early stages of drug testing. [NA3RsC] What if it were possible to screen for compounds with cardiotoxic side effects in less than a few hours? Dr. Farraj and colleagues from the National Health and Environmental Effects Research Laboratory explore the possibility of using zebrafish embryos to accurately predict cardiotoxicity quickly. In their publication in Scientific Reports, Farraj and colleagues describe a multi-well platform with the ability to automatically quantify the heart rate of multiple zebrafish embryos per imaging field using an algorithm they call FisHRateZ. To demonstrate the utility of this approach, embryos were exposed to compounds known to either increase or decrease the heart rate. FisHRateZ accurately detected expected changes in heart rate with high sensitivity. The whole process is also quite fast. The assessment of a full 96-well plate can be conducted in less than 50 minutes. One limitation, they note, is the inability of FisHRateZ to measure arrhythmias. Check out this paper to learn more about the platform and download the free video processing algorithms. [NC3Rs] Scientists often use indirect measures such as changes in behavior or physiology to assess whether the welfare of the animal has been compromised, but methods which have been applied to larger non-aquatic animals are often not appropriate for fish. Recently, a mathematical method has come to the rescue, allowing the amount a fish moves to be used as a marker for welfare. Dr Anthony Deakin and team at the University of Liverpool developed the method, which used cameras to track the movement of individually housed zebrafish before and after undergoing potentially painful procedures. The trajectories created by the movement of the fish were analysed using the fractal dimension technique, which is a method used to reduce the complexity of data and produce a simple scale on which to compare the adversity of different procedures. This revealed significant reductions in movement complexity in procedural groups in comparison to the control. In particular, fin-clipped and PIT-tagged groups showed reduced movement complexity, highlighting the likelihood that these routine procedures are indeed painful. The addition of lidocaine reduced the impact of the fin clipping, demonstrating that this analgesia is an advantageous refinement in fish. Follow the link in the description to find out more about this non-invasive tool to monitor zebrafish welfare. See acast.com/privacy for privacy and opt-out information.

Theopoetics Podcast
A Poetics of the Larval - Theopoetics Podcast Ep. 16

Theopoetics Podcast

Play Episode Listen Later Jun 20, 2019 58:46


In this episode, Anuj and Tim discuss the ecological impact of the cinematic medium. They talk about scope as a lens for filmmaking, creating conversational settings to reflect upon cinema and the environment, and we dialogue about some of his projects and how they invite a process-relational perspective through a kind of storytelling that grapples with the toxic legacy of human exceptionalism.

The Imperfect Buddha Podcast
32 John Paetsch on Deleuze and the Larval Subject

The Imperfect Buddha Podcast

Play Episode Listen Later Aug 30, 2018 39:25


John Paetsch joins us for a short chat about his upcoming seminar for Incite. We discuss Deleuze, philosophy, freedom and what you might expect from the event. I also add an extended introduction for listeners so that that they can contextualise the topic and understand better why we are promoting Incite. The event page is here.  Matthew O'Connell is a life coach and the host of the The Imperfect Buddha podcast. You can find The Imperfect Buddha on Facebook and Twitter (@imperfectbuddha). Learn more about your ad choices. Visit megaphone.fm/adchoices

Post-Traditional Buddhism Podcast
32. IBP: [Incite] John Paetsch on Deleuze & the Larval subject (+extended intro)

Post-Traditional Buddhism Podcast

Play Episode Listen Later Aug 30, 2018 37:40


John Paetsch joins us for a short chat about his upcoming seminar for Incite. We discuss Deleuze, philosophy, freedom and what you might expect from the event. I also add an extended introduction for listeners so that that they can contextualise the topic and understand better why we are promoting Incite. The event page: https://inciteseminars.com/gilles-deleuze-larval-subjects-lost-time/ Links: O'Connell Coaching: oconnellcoaching.com/ Post-Traditional Buddhism: posttraditionalbuddhism.com/

Timeless Landscape Design
037: Native Plants for Birds (5/8) Hip & Cool Plants!

Timeless Landscape Design

Play Episode Listen Later May 24, 2018 9:33


Great choices for Hip & Cool Garden Plants are covered in this 8 part series designed to add a little zip to your summer garden!   Dovecote is the teaching garden design lab and home to The Garden Talk Salon at Dargan Landscape Architects.    Topics in this episode:  . There are four main categories . Larval host plants . Seed/Rich nut producing plants . Barry producing plants/nectar-producing plants   Cheers! 

Timeless Landscape Design
036: Native Plants for Birds (4/8) Hip & Cool Plants!

Timeless Landscape Design

Play Episode Listen Later May 22, 2018 10:07


Great choices for Hip & Cool Garden Plants are covered in this 8 part series designed to add a little zip to your summer garden!   Dovecote is the teaching garden design lab and home to The Garden Talk Salon at Dargan Landscape Architects.    Topics in this episode:  . There are four main categories . Larval host plants . Seed/Rich nut producing plants . Barry producing plants/nectar-producing plants   Cheers! 

Discovering Darwin
Season 2 Episode 2 - and he dies.......at the end.

Discovering Darwin

Play Episode Listen Later Apr 30, 2017


In this episode we discuss the extensive library on the HMS Beagle that was created by Charles Darwin and Robert Fitzroy.  Over 400 books were in the ship's library and the catalog had a heavy emphasis on travel accounts (travelogues), natural history and geology.  We discussed Humboldt and his influence on Darwin and Jeremy told the story about the dragon tree and Darwin's wish to travel the lands of Humboldt to see the same sights as Humboldt.Dragon trees in the canary islands (picture from http://pixdaus.com/canary-islands-dragon-tree-or-drago-tree/items/view/267293/)Here is Humboldt's description of the dragon tree-Although we were acquainted, from the narratives of so many travellers, with the dragon-tree of the garden of Mr. Franqui, we were not the less struck with it's enormous magnitude. We were told, that the trunk of this tree, which is mentioned in several very ancient documents as marking the boundaries of a field, was as gigantic in the fifteenth century, as it is at the present moment. It's height appeared to us to be about 50 or 60 feet; it's circumference near the roots is 45 feet. We could not measure higher, but Sir George Staunton found, that, 10 feet from the ground, the diameter of the trunk is still 12 English feet; which corresponds perfectly with the assertion of Borda, who found it's mean circumference 33 feet 8 inches, French measure. The trunk is divided into a great number of branches, which rise in the form of a candelabrum, and are terminated by tufts of leaves, like the yucca which adorns the valley of Mexico. It is this division, which gives it a very different appearance from that of the palm-tree*. [Humboldt, Alexander von. 1814-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. pgs 144-145]Since 36% of the books in the Beagle library were travelogues, and Darwin's own Voyage of the Beagle is a travelogue, we invited Dr. Jeremy Paden, professor of Spanish Literature at Transylvania University, to discuss with us the role of travelogues in the 16th-19th century as a literature form.During our discussion Jeremy highlighted Thomas Falkner as an influential travelogue writer who wrote  A description of Patagonia, and the adjoining parts of South America (1774).  Falkner described the region of Patagonia, a rugged area at the tip of of South America that also encompassed the Streights of Magellan.Straits of MagellanUnlike the map above which show the Straits of Magellan as a simple channel, the real Straits of Magellan are quite complex and convoluted as seen in the Google map below. Notice the large number of cul-de-sac inlets and waterways that can easy lead you astray.We noted that the tip of South America looks more like a spongiform brain that has mad cow disease as shown in the image below, left image is a brain with Creutzfeldt-Jakob disease and brain on the right is normal brain.James highlighted an unusual book in the collection - Werner's Colours, a small book that includes colour swatches that Darwin used as reference when he was taking notes of specimens.Excerpt from Werner's ColoursYou can peruse the entire Beagle library at the Darwin Online website.At the end of the podcast we spoke with Dr. Paden about his own research and interest in poetry. James mentioned his appreciation of Jeremy's poem on the liver fluke parasite and we reprint it here-CompulsionFalling from the masticating jaws of ungulatesthat clip the tips of grass blades, the black antescapes this evening’s immolationand the circuitous route of cud-balls,from stomach to teeth, stomach to teeth.Ignorant of why it leaves the sweet feastof slime balls secreted by common land snails,come dusk, the ant climbs again the broad greenleaf to spend the night in sirshasana​,​pinschers clamped ​to the end of a grass blade.Larval lancet liver flukes, encystedin snail-trail droppings, once eaten,​ move to​the ganglion below the gullet,​ and force ​​Formica fusca to climb​ the blade​ andwait for the grazing cattle to come home.If you are interested in reading more of Jeremy Paden's poems you can find his published book of poems concerning mining in Chile here or here.The opening and closing theme to Discovering Darwin is "May" by Jared C. Balogh. Interlude music was Procreation by Little Glass Men

Horror Show Hot Dog
Episode 162 – Larval Willem Dafoe

Horror Show Hot Dog

Play Episode Listen Later Mar 20, 2017 103:36


Movies discussed: Nosferatu, The Hunger, Byzantium, Monsters in the Dark (short) This week we struggle through some issues with Skype (I left a couple weird moments in the show. If we had to deal with all of it, you can deal with a little bit of it. It’s tough love. Next weeks assignments: Stung Banshee Chapter Shock Waves Stay Dead (short) Over My Dead Body (short) Watch along with us if you like and we’ll see you next week. The post Episode 162 – Larval Willem Dafoe appeared first on Horror Show Hot Dog.

Radio1000BC
Radio1000BC presents Black Boxsss #39. The Postulant.

Radio1000BC

Play Episode Listen Later Oct 6, 2016


The Postulant by Simon Saint-Simon In the cave I lay upside down and took my place amongst the other candidates … Larval came the day A trist of steel and slitted wrist Gutting empty sacks of shit … In my roof, red rivers engulfed Yet I would never be white enough 01 Anthony Child – […]

Fakultät für Biologie - Digitale Hochschulschriften der LMU - Teil 04/06
Illuminating the neural circuitry underlying larval zebrafish behavior

Fakultät für Biologie - Digitale Hochschulschriften der LMU - Teil 04/06

Play Episode Listen Later Dec 21, 2010


Tue, 21 Dec 2010 12:00:00 +0100 https://edoc.ub.uni-muenchen.de/13995/ https://edoc.ub.uni-muenchen.de/13995/1/Naumann_Eva.pdf Naumann, Eva ddc:570, ddc:500, Fakultät für Biologie