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Darwin's great voyage of discovery continues. The ancient past was a vast mystery, with many claiming that God alone was the explanation for all things. As Darwin travelled and jotted his observations in his little notebooks, he began to lift the veil on the ancient past. New species, now long vanished, were discovered. Darwin began […] The post EP048: A BIT OF SLOTH appeared first on AGE OF VICTORIA PODCAST.
In challenges and hardship, the struggle of adapting on the fly is paramount, and the ability to do so is characteristic of all champions. As Darwin said “it is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is most adaptable to change.”
In our mythologies, there's often a singular moment when we became “human.” Eve plucked the fruit of the tree of knowledge and gained awareness of good and evil. Prometheus created men from clay and gave them fire. But in the modern origin story, evolution, there's no defining moment of creation. Instead, humans emerged gradually, generation by generation, from earlier species. As with any other complex adaptation—a bird's wing, a whale's fluke, our own fingers—our humanity evolved step by step, over millions of years. Mutations appeared in our DNA, spread through the population, our ancestors slowly became something more like us and, finally, we appeared. Strange Apes, But Still Apes People are animals, but we're unlike other animals. We have complex languages that let us articulate and communicate ideas. We're creative: we make art, music, tools. Our imaginations let us think up worlds that once existed, dream up worlds that might yet exist, and reorder the external world according to those thoughts. Our social lives are complex networks of families, friends, and tribes, linked by a sense of responsibility towards each other. We also have awareness of ourselves and our universe: sentience, sapience, consciousness, whatever you call it. And yet the distinction between ourselves and other animals is, arguably, artificial. Animals are more like humans than we might think—or like to think. Almost all behavior we once considered unique to ourselves is seen in animals, even if they're less well developed. That's especially true of the great apes. Chimps, for example, have simple gestural and verbal communication. They make crude tools, even weapons, and different groups have different suites of tools—distinct cultures. Chimps also have complex social lives and cooperate with each other. As Darwin noted in Descent of Man, almost everything odd about Homo sapiens—emotion, cognition, language, tools, society—exists, in some primitive form, in other animals. We're different, but less different than we think. And in the past, some species were far more like us than other apes: Ardipithecus, Australopithecus, Homo erectus, and Neanderthals. Homo sapiens is the only survivor of a once diverse group of humans and human-like apes, the hominins, which includes around 20 known species and probably dozens of unknown species. The extinction of those other hominins wiped out all the species that were intermediate between ourselves and other apes, creating the impression that some vast, unbridgeable gulf separates us from the rest of life on Earth. But the division would be far less clear if those species still existed. What looks like a bright, sharp dividing line is really an artefact of extinction. The discovery of these extinct species now blurs that line again and shows how the distance between us and other animals was crossed—gradually, over millennia. The Evolution of Humanity Our lineage probably split from the chimpanzees around six million years ago. These first hominins, members of the human line, would barely have seemed human, however. For the first few million years, hominin evolution was slow. The first big change was walking upright, which let hominins move away from forests into more open grassland and bush. But if they walked like us, nothing else suggests the first hominins were any more human than chimps or gorillas. Ardipithecus, the earliest well-known hominin, had a brain that was slightly smaller than a chimp's, and there's no evidence they used tools. In the next million years, Australopithecus appeared. Australopithecus had a slightly larger brain; larger than a chimp's, still smaller than a gorilla's. It made slightly more sophisticated tools than chimps, using sharp stones to butcher animals. Then came Homo habilis. For the first time, hominin brain size exceeded that of other apes. Tools like stone flakes, hammer stones, and “choppers” became much more complex. After that, around two million years ago, human evolu...
The Loss of Sadness: How Psychiatry Transformed Normal Sorrow into Depressive Disorder, https://www.amazon.com/Loss-Sadness-Psychiatry-Transformed-Depressive-ebook/dp/B001CHRHHO/ "Nonhuman primates show a clear resemblance to humans in the way they respond to loss—that is, in their observable features of expression, behavior, and brain functioning. As Darwin noted, apes and humans show similar facial expressions in situations that are associated with sadness, including elevated eyebrows, drooping eyelids, horizontal wrinkles across the forehead, and outward extension and drawing down of the lips. In addition, displays of sadness among apes, like human responses, include decreased locomotor activity, agitation, slouched or fetal-like posture, cessation of play behavior, and social withdrawal. Most important, the loss situations that commonly lead to depressive responses are similar in primates and in humans. Nonhuman primates react to separations from intimates—for example, an infant monkey separating from its mother—with physiological responses similar to those that correlate with sadness in humans, including elevated levels of cortisol and ACTH hormones and impairments of the hypothalamic-pituitary-adrenal (HPA) axis. Adult nonhuman primates that are separated from sexual partners or peers show similar reactions. Primate studies also show that symptoms of depression that develop after separations rapidly disappear when the situation of loss is resolved, such as when an infant monkey is reunited with its mother. Also, primates in environments that feature readily available mother substitutes rarely exhibit severe or enduring reactions in response to maternal separations. Such transient sadness responses to separation are part of innate coping mechanisms among many species. However, prolonged separations and separations marked by profound isolation can produce neuroanatomical changes that permanently affect nonhuman primate brain functioning, analogous to the triggering of genuine depressive disorder in humans." Join this channel to get access to perks: https://www.youtube.com/channel/UCSFVD7Xfhn7sJY8LAIQmH8Q/join https://odysee.com/@LukeFordLive, https://lbry.tv/@LukeFord, https://rumble.com/lukeford https://dlive.tv/lukefordlivestreams Listener Call In #: 1-310-997-4596 Superchat: https://entropystream.live/app/lukefordlive Bitchute: https://www.bitchute.com/channel/lukeford/ Soundcloud MP3s: https://soundcloud.com/luke-ford-666431593 Code of Conduct: https://lukeford.net/blog/?p=125692 https://www.patreon.com/lukeford http://lukeford.net Email me: lukeisback@gmail.com or DM me on Twitter.com/lukeford Support the show | https://www.streamlabs.com/lukeford, https://patreon.com/lukeford, https://PayPal.Me/lukeisback Facebook: http://facebook.com/lukecford Feel free to clip my videos. It's nice when you link back to the original.
The message of the Masterpiece Movement is that we can continue to grow and flourish as we age. Research proves that keeping your body moving, committing to lifelong learning, staying socially connected and having a purpose contribute to resilience, longevity, and happiness. About Dr. Roger Landry Dr. Roger Landry is a preventive medicine physician, author of award-winning Live Long, Die Short: A Guide to Authentic Health and Successful Aging and President of Masterpiece Living, a group of multi-discipline specialists in aging who partner with communities to assist them in becoming destinations for continued growth. Trained at Tufts University School of Medicine and Harvard University School of Public Health, Dr. Landry specializes in building environments that empower older adults to maximize their unique potential. His book, Live Long, Die Short: A Guide to Authentic Health and Successful Aging has been endorsed by AARP, is a 2014 Living Now Book Award Gold Medal Winner and was a 2014 Top Pick in MORE magazine. He was also a contributor to the recently published 80 Things to Do When You Turn 80 and the author of Where You Live Matters, a special brief on the role of cultural environment in aging. He hosts a podcast “Roger and Friends: The Bright Side of Longevity.” Key Takeaways We marginalize older adults because of erroneous information and stereotypes. The key to healthy aging is how you handle life's “curveballs.” We are not born resilient, it is something we develop, and is dependent upon our life view. As Darwin proved, it is not the strongest and not the most intelligent who survive, it's the most adaptable. Masterpiece Living's work in senior living facilities starts with a lifestyle profile—a tool developed by scholars in 1999 featuring research-generated questions that give a snapshot of your holistic health. We reflect the values of those around us. Surround yourself with people who believe in you and your potential and who are getting the most out of life.
Despite the controversy, evolution was widely accepted by many naturalists within a few years of the Origin's appearance. An important reason for this rapid triumph was Darwin's botanical works. Seen through evolutionary eyes, plants proved to be mobile, carnivorous, sensitive - even crafty. As Darwin "exalted" his favourite flowers, the orchids, he also narrowed the once-unimaginably wide gap between plants and animals, thus making it easier for his readers to imaginatively bridge the much smaller distance between humans and apes.A lecture by Jim Endersby 8 FebruaryThe transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/lectures-and-events/darwin-greenhouseGresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 2,000 lectures free to access or download from the website.Website: http://www.gresham.ac.uk Twitter: http://twitter.com/GreshamCollege Facebook: https://www.facebook.com/greshamcollege Instagram: http://www.instagram.com/greshamcollege
When Darwin finally published the On the Origin of Species, he tried to avoid controversy by ignoring human origins. Yet evolution was soon being attacked as the godless 'monkey theory'. However, while some condemned Darwin's book, others found a form of consolation in it, an alternative to an orthodox Christian faith some found hard to maintain. As Darwin tried to make sense of the death of his favourite daughter, Annie, many of his readers found unexpected consolation for their own losses in Darwin's words.A lecture by Jim Endersby 30 NovemberThe transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/lectures-and-events/darwin-monkeyGresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 2,000 lectures free to access or download from the website.Website: http://www.gresham.ac.uk Twitter: http://twitter.com/GreshamCollege Facebook: https://www.facebook.com/greshamcollege Instagram: http://www.instagram.com/greshamcollege
David Loye, author of Darwin in Love, talks to Ken Wilber about the life and often-distorted legacy of Charles Darwin, as well as Darwin’s belief in LOVE as a critical driver of the evolution of species. Survival of the fittest is taken by many as the end-all, be-all of Darwinian evolution — that all evolution comes down to the solitary drive to propagate one’s genes at any cost, giving rise to all sorts of “selfish gene” interpretations of life, evolution, and society. Which is kind of funny, considering that in The Descent of Man, where Darwin focused on human evolution in particular, he only used the phrase “survival of the fittest” twice — and one of those times was to suggest that the phrase not be used at all! Compare this to the 95 times Darwin used the word “love” and 92 mentions of “moral sensitivity” as important drivers of evolution, and it becomes clear that something important is missing from our current discussions of evolution, natural selection, and Darwin’s tremendous legacy. As Darwin himself explains, pure survival is but the lowest of evolutionary drivers, and are eclipsed by a number of other drivers as we move up the evolutionary chain. In Darwin’s mind, evolution was guided by an entire spectrum of critical drivers that ranged from sexual instincts on the lowest end to the Golden Rule on the highest, with parental instincts, social instincts, emotion and reason, cultural habits, etc. filling out the rest of the picture. From sex to the Golden Rule — just using this simple frame, we can see three critical dimensions of evolutionary unfolding that are almost always missed by contemporary readings of Darwin: - Darwin’s belief in higher-stage, non-physical drivers of evolution, which argue against reductionism. - Darwin’s attention to the interior dimensions of evolutionary selection, which argue against scientific materialism. - Darwin’s emphasis upon mutuality, reciprocity, and other intersubjective/interobjective factors, which argue against selfishness, opportunism, and narcissism Taken together, this leads to a much more comprehensive understanding of our own evolution, and helps cut through the distortion of books like The Selfish Gene or Darwin’s Dangerous Idea. Join us as we take a closer look at the life and legacy of one of history’s greatest pioneers, and examine an evolutionary process that is anything but blind when it selects for beauty, is anything but dumb when it selects for truth, and is anything but amoral when it selects for goodness. Find the full 2-hour dialogue here: https://integrallife.com/for-the-love-of-darwin-beyond-the-selfish-gene/
Stream podcast episodes on demand from www.bitesz.com (mobile friendly). Brothers Wreck BY JADA ALBERTS Ruben is full of anger and dancing on the edge, struggling to cope with his brother’s death. As Darwin swelters, tensions in the house are high as Ruben slips further and further adrift from all those around him: his counselor, his best mate, his sister, his beloved Aunty. When the summer storm finally breaks, the family must pull together and find the strength to bring Ruben back from the brink. Jada Alberts’ breakout play is one of the most moving pieces to grace Australian stages in recent years. Starring Trevor Jamieson (The Season, Melbourne Festival), Nelson Baker (The Warriors, ABC TV), Lisa Flanagan (Australian Rules), Leonie Whyman (Black Comedy, ABC) and Dion Williams (Gallipoli, Nine) this is Jada’s directorial debut of her hit powerhouse play – heralded as a triumph in its Sydney premiere season. Transporting us to her hometown in the Top End, Jada leads us through a gripping drama about a grief-stricken family whose love for each other knows no limits. For more details, visit:https://malthousetheatre.com.au/whats-on/brothers-wreck Theatre First RSS feed: https://audioboom.com/channels/4839371.rss Subscribe, rate and review Theatre First at all good podcatcher apps, including Apple Podcasts (formerly iTunes), Stitcher, Pocket Casts, audioBoom, CastBox.FM, Podbean etc. If you're enjoying Theatre First podcast, please share and tell your friends. Your support would be appreciated...thank you. #theatre #stage #reviews #melbourne #australia #brotherswreck Learn more about your ad choices. Visit megaphone.fm/adchoices See acast.com/privacy for privacy and opt-out information.
In this episode Sarah, Josh and James discuss the opening chapters of Voyage of the Beagle where Darwin recounts the initial months of his voyage that includes an aborted stop at the Canary Islands, a visit to Cape Verde and then his first overland trip in Brazil. James discussed how Darwin spent as much time off the Beagle traveling overland than he did sailing in the Beagle.By Jules de Caudin - Relation complète du naufrage de la frégate La Méduse faisant partie de l'expédition du Sénégal en 1816, by A. Correard, H. Savigny, D'Anglas de Praviel and Paul C.L. Alexandre Rand des Adrets (dit Sander Rang). Reprint 1968 by Jean de Bonnot éditeur., Public Domain, https://commons.wikimedia.org/w/index.php?curid=19330900James talked about the work of the scholar John van Wyhe who scoured through Darwin and Fitzroy’s diaries and journals to reconstruct the day-to-day itinerary for the HMS Beagle during the 5 year voyage and lists location, latitude/longitude coordinates and where Darwin was located – either on ship or on land. When you break down of the 1,740 day voyage you realize Darwin made great efforts to spend time away from the ship. From Darwin’s perspective he almost equally split his time between being at sea, at anchor or traveling on land. Based on the itinerary of the Beagle Darwin spent 580 days at Sea, 566 days at anchor and 594 days away from the Beagle on overland excursions. Interesting, even when anchored or exploring on land, Darwin would return to sleep on the Beagle which he found to be very comforting. Darwin spent 1,144 nights on the beagle (65.8% of the trip) whereas he spent 596 nights off ship which is only 34.2% of the trip. Over half (55%) of that time was spent in South America alone. James discussed how Darwin's diary and notebooks in the first 2 months of the journey included interesting details that were absent in the Voyage. In particular, Josh talked about the ritualized hazing that sailors would inflict on the new crew members when they crossed the equator, a ritual called the line-crossing ceremony.Josh referenced this nice article from the Atlas Obscura website that discusses the odd ritual of hazing as one crosses an imaginary line on the earth's surface. Sarah also talked about the Tropic of Cancer and the Tropic of Capricorn and how the wind patterns associated with those imaginary lines on the earth drove trans-Atlantic slave trade and the conquest of the New World.We focused on the first overland trip that Darwin took when he landed in Brazil. This was the first of many trips that Darwin took while Captain Fitzroy fastidiously checked his charts and maps by reiterately sailing up and down the coast of South America.http://www.mun.ca/biology/scarr/Voyage_of_the_Beagle.jpgAs Darwin traveled overland he mentioed many interesting animals and plants he encountered in the jungles of Brazil. One group of animals Darwin became enamored with was planaria (Plathyhelminthes). Interesting, even to this day new species of flatworms are being discovered in Brazil.James pointed out that this group of animals also exhibit great species diversity in the marine habitat where they show a beautiful diversity in colors. Here are just few examples of the amazing color diversity of marine flatworms one can find with a simple google image search.Sarah became obsessed, like Darwin, with bioluminescence. Sarah discussed the amazing evolution of bioluminescence and how it has evolved independently across a number of disparate phyla and kingdoms. Darwin was particularly enamored by a large click beetle that incorporates bioluminescence in mating display. One of our students took a wonderful picture of the same beetle during our Tropical Ecology class to Belize.photo by Kali MattinglyThe opening and closing theme to Discovering Darwin is "May" by Jared C. Balogh. Interlude music http://freemusicarchive.org/music/DubRaJah/Reprise/7_Chitwan
In this episode we decided to break from the standard form of the podcast and discuss two chapters at once instead of the traditional single chapter per episode. Episode 7 covers Chapter VI - Difficulties with the Theory and Chapter VII - Miscellaneous Objections to the Theory of Natural Selection. We note that Chapter VII is really more of a vanity press project where Darwin dedicates a whole chapter to personally rebuke the concerns and critiques of Mr. St. George Mivart, a fellow biologist who published criticisms against Origin of Species.St. George Mivart, as Charles Darwin saw him Transitions. "First, why, if species have descended from other species by fine gradations, do we not everywhere see innumerable transitional forms? Why is not all nature in confusion, instead of the species being, as we see them, well defined?” pg 212James used the imagery of a rainbow to argue that we often ignore the transitions or force transitional forms into the more distinct categories. The biggest challenge of a transitional form is that it is a challenge that increases exponentially with each attempt to address the lack of transitions. We discussed that if you see Species A and Species C and believe they are closely related then the criticism of lack of transition can be leveled at the evolutionist. If the transitional form Species B is found in the fossil record then the challenge for transitional forms doubles because now you must find the transition between A & B and B & C. Each new transitional form increases the demands for more transitional forms. Sarah made the argument that the transitional challenge is often the case of moving the goal posts.The other challenge of transitional forms is that speciation can occur in two major patterns - anagenesis and cladogenesis. This figure represents the two forms of speciation.figure from http://krupp.wcc.hawaii.edu/In anagenesis the species goes through transformation such that the original form is replaced by the new form and both are recognized as unique species. This shift in form can often occur quickly so that there is little opportunity for fossil evidence of the forms or the transitional forms are quickly replaced by the new forms.Old photographs of common dog breeds show how quickly we have modified the breeds in just 100 years. A summary of this can be found at Science and Dogs website where we collected this intriguing comparison of how the bull terrier has changed over the past 100 years. Of course these are not true species but the premise is the same, shifting from one form to another can occur quickly and no transitional forms remain for comparison. This is where my rainbow metaphor comes to play.The other form of speciation is called cladogenesis which involves a subset of the species that diverge from the ancestral form. Josh spoke about bat bugs and bed bugs and how they share an ancestry but it would be difficult to find the specific transitional individual between bat and bed bugs.image from http://ohioline.osu.edu/hyg-fact/2000/2105a.htmlSaltations"It has been asked by the opponents of such views as I hold, how, for instance, could a land carnivorous animal have been converted into one with aquatic habits; for how could the animal in its transitional state have subsisted? [220]"The evolution of whales, at one time a challenge to Darwin, have now become one of the best examples of evolution. The fossil record for whale evolution is robust because the ancestors of whales were semi-aquatic or aquatic mammals and their remains would often sink to the silty bottom of the ocean or bay where they lived. Buried in the mud the remains would quickly become entombed so their skeletons remained intact. Our current understanding of whale evolution is beautifully represented by this graphic from Berkeley website.A nice video animation summarizes the proposed process of whale evolution and it can be watched here. As Darwin argues, the large differences in forms that we see today developed over long periods of time with successive accumulated changes in form. The scale involved in the process, millions of years with many millions of individuals is often difficult for humans to appreciate or comprehend.James talked about the flying squirrel and how cute it is. Here is his photographic proof of its cuteness. flying squirrel in Kentucky, cutest animal on earth?Complex Structures The eye to this day gives me a cold shudder, but when I think of the fine known gradations, my reason tells me I ought to conquer the cold shudder. - Charles Darwin in a letter to Asa Gray (February 1860).The complexity of the eye with all of its intricate interconnecting parts seem, at first blush, to be too complex to have been formed by natural selection. This has historically been a difficult problem to solve because the eyeball does not fossilize so we are left to look for examples of eye evolution by looking at extant species. However, modern biology using molecular techniques and studying the genes involved in the production of the eye have beautifully reconstructed how a camera-like eye of vertebrates could have evolved from a simple light sensing structure seen in primitive chordates like the hagfish.hagfish with slime - photo from ecouterreThere a nice TED talk with awesome graphics that summarizes our current state of knowledge of how the eye evolved. The opening and closing theme to Discovering Darwin is "May" by Jared C. Balogh. http://freemusicarchive.org/music/Balogh/Revitalized_Eyes/MAY Copyright: Attribution-NonCommercial-ShareAlike: http://creativecommons.org/licenses/by-nc-sa/3.0/