What in the World

Axolotls are only found in the wild in one place in the world; an area of wetland just outside Mexico City. They are one of the world's most endangered, and arguably most adorable, amphibians. Not just meme-worthy, they are also scientifically fascinating - they don't really age and they can regrow body parts, including their brains. Very few are left in the wild, but now scientists have released captive-bred axolotls back into the wetlands and found that they not only survived, but even put on a bit of weight. BBC science correspondent Victoria Gill talks us through the study and explains what scientists can learn from these amazing creatures. And Assistant Professor Prayag Murawala from the MDI Biological Laboratory in the US, describes what we know about how axolotls regenerate their own body parts. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Chelsea Coates, Emily Horler and Julia Ross-Roy Editor: Harriet Oliver

Sean "Diddy" Combs is one of the most successful music moguls in the history of rap. He has been arrested and charged with sex trafficking and racketeering. Prosecutors allege that he “abused, threatened, and coerced women” and that he created “a criminal enterprise” involving forced labour, kidnapping and bribery. Mr. Combs denies the charges and has pleaded not guilty.Ahead of the trial later this month, Anoushka Mutanda-Dougherty, host of the BBC podcast, Diddy on Trial, explains the charges and shares Diddy's response. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producer: William Lee Adams and Mora Morrison Video Journalist: Baldeep Chahal Editor: Verity Wilde

Two Belgian teenagers have plead guilty to trying to smuggle thousands of giant African harvester ants out of Kenya. The authorities said they were allegedly planning to sell the ants on the growing exotic pet market in Europe and Asia, where ant keepers put the insects in special habitats and watch them build their colonies. BBC reporter Akisa Wandera talks us through this landmark case.We also hear from two ant keepers, Kaden (Ender Ants) and Mauro (Bruma Ants) on why they love their pets.And finally, a quick question for you, how many ants do you think there are for every person on earth? A) 10 ants B) 67 thousand ants C) 980 thousand ants D) 2.5 million antsListen to the episode for the answer!Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Chelsea Coates Editor: Verity Wilde

Nasa astronauts Butch Wilmore and Suni Williams recently returned to Earth after a longer-than-expected nine months on the International Space Station (ISS). And when the astronauts emerged from their space craft they were helped on to a stretcher, which is standard practice after spending so long in a weightless environment.The BBC's Caroline Steel has been looking into how going into space impacts the body. She talks us through how muscles, bones and even vision are affected, and how astronauts can limit any long-term damage. Peggy Whitson holds the world record for the woman who has spent most time in space - 675 days. She explains the challenges of lifting weights while in zero gravity. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison and Emilia Jansson Video Journalist: Baldeep Chahal and Kesewaa Browne Editor: Verity Wilde

China's cosmetic surgery industry has exploded over the past decade and in turn, put even more pressure on young women to conform to unrealistic beauty standards. On Chinese social media there are hundreds of filtered faces, extreme weight-loss hacks, and even apps that scan your face and let you book cosmetic surgery as easily as ordering a taxi. BBC reporter Natalia Zuo, takes us through the culture in China and what she found out when working on a documentary for the BBC about the boom.You can watch the documentary on YouTube: https://www.youtube.com/watch?v=GaYSEWlHrGwInstagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Benita Barden Editor: Harriet Oliver

Many economists have warned that the world is poised for an economic downturn. The warnings come after President Trump's recent changes to America's tariff policies. Changes in consumer spending — including their fashion choices — are one potential “recession indicator.”Erin Delmore, the BBC's North America business correspondent, explains what a recession is and discusses how people's purchasing decisions — regarding everything from clothes to salon visits — offer clues to what's going on with the economy. We also hear from Caroline Stevenson from the London College of Fashion. She explains how trends come about and unpacks recent trends like the “clean girl” look and the “office siren”. Plus content creator Leah Holme discusses how she makes mindful purchasing decisions based on the long-term. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: William Lee Adams, Benita Barden, Abiona Boja, Maria Clara Montoya Editor: Verity Wilde

Finding the right shade of makeup can be a struggle, especially if you have really fair or dark skin. But things are changing. Some brands, including Korean ones are looking at their shade ranges and making them more inclusive. Soo Min Kim, a BBC reporter, takes us through the K-beauty industry and what's changing.We also hear from two beauty influencers - May Akhtar and Oceanne Comtois. Have they seen much change and could K-beauty be what the market needs?Gloria Achieng is a BBC reporter in Kenya - how popular are products there?And Adam Triantis from Dcypher walks us through why brands having a huge shade range can be hard logistically and whether AI could help. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Benita Barden Video Journalist: Baldeep Chahal Editor: Verity Wilde

The title of Ed Sheeran's new single ‘Azizam' means ‘my love' in the Persian language. The track and accompanying music video includes references to Persian culture and features famous Iranian pop star Googoosh. She's been banned from singing in Iran since the 1970s.The song has received an outpouring of support from Iranian communities worldwide for its positive and heartfelt representation of Iran. But Googoosh's featuring role has also shed light on the restrictions that women face in Iran, including a ban on singing in public places. We speak to Ghoncheh Habibiazad from BBC Persian about what inspired the song and what it tells us about music culture in Iran.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: William Lee Adams and Benita Barden Editor: Verity Wilde

Pope Francis led the Catholic church for more than a decade. He was the first Latin American pope, and the first non-European in more than a thousand years.Many saw him as a more liberal pope than his predecessors - he talked about things like climate change, migration and LGBTQ rights but there are also those who felt he should have been more progressive.After his funeral, a conclave will begin and his successor will be chosen. We explain what this process involves and we hear young voices from around the world speaking about the death of Pope Francis and their hopes for the future of the Catholic Church.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Maria Clara Montoya Editor: Verity Wilde

Over the past few weeks social media has been flooded with TikTok videos of people claiming that expensive European designer goods are actually made in China, and that you can buy the same luxury handbags and clothes for a fraction of the usual price. Many of these videos have since been taken down, but it's led many to wonder if any of these claims are true. Are consumers being ripped off? And does President Donald Trump's increased tariffs on Chinese imports have anything to do with these videos?We speak to Jake Horton, a reporter at BBC Verify, who's been analysing these viral Chinese supplier videos. He's reached out to both designers and copyright law experts.Plus: we hear from Blythe Milligan, a supply chain expert and the host of the Everything is Logistics podcast, about why some products are manufactured in Asia. She also explains how supply chains work. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: William Lee Adams Producers: Benita Barden and Maria Clara Montoya Editor: Emily Horler

It's 2025 and Katy Perry has officially gone to space. On Monday 14th April, she strapped herself into the Blue Origin rocket and blasted off like a “Firework” with five other well-known women. The rocket is owned by Amazon billionaire Jeff Bezos and his fiancé Lauren Sanchez was also on board. The women claimed this all-female mission was to “take up space” but the reaction to the trip has been “Hot N Cold“. Some argue this wasn't a win for feminism, only for the “Roar“ of capitalism.But what is space tourism? And are regular people going to start flying to space and become “‘E.T.“?The BBC's Science correspondent Victoria Gill explains what the reaction has been and the impact space travel can have on the environment.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: William Lee-Adams Producers: Emily Horler and Emilia Jansson Editor: Julia Ross-Roy

‘Tell Your Papa' by Eedris Abdulkareem is an Afrobeats song which criticises Nigeria's president Bola Tinubu and calls on his son, Seyi Tinubu, to let his father know that "people are dying" because of hardship and insecurity, and that there is "hunger" in the country. After its release, Nigeria's National Broadcast Commission (NBC) ordered TV and radio stations not to play the track. They classed it as "inappropriate for broadcast due to its objectionable nature", adding that it falls short of public decency standards.Neither Nigeria's president nor his son have commented on the song or the ban. The BBC's Makuochi Okafor explains the reaction to the song's ban and describes what life is like for Nigerians right now.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Mimi Swaby Producers: Maria Clara Montoya, Josh Jenkins and Adam Chowdhury Video Journalist: Baldeep Chahal Editor: Julia Ross-Roy

A pet can bring so much joy to a person's life. Usually, the owner will outlive their pet. But advances in modern veterinary care has made more treatments available to keep animals alive for longer. It can be expensive, with owners spending thousands of dollars to keep their beloved pet alive. But are these treatments worth it? And when does medical care for pets cross a line?BBC Brasil journalist Julia Braun joins us in the studio to discuss animal euthanasia and why pet owners face such difficult choices. We also speak to Springer Svenja, a veterinary medicine professor at the University of Vienna and we hear from a vet in California, Sarah Cortright, on the work veterinarians do in navigating people through these sad times.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: William Lee Adams Producers: Julia Braun, Emily Horler and Emilia Jansson Editor: Julia Ross-Roy

An enormous fifty-year-old ocean liner, the SS United States, is set to be sunk and become the world's biggest artificial reef, off the coast of Florida in the US. The area already has over 500 artificial reefs. These are manmade structures that may mimic some of the characteristics of a natural reef. The people behind it say it'll improve biodiversity, local tourism and fishing.And it's not just old ships; people have sunk oil rigs and subway carriages. They don't always have a positive effect; in the 1970s two million tyres were dropped into the ocean to try to create an artificial reef (also off the coast of Florida), but they released lots of toxins. Climate and science reporter Georgina Rannard explains how ships like this get turned into artificial reefs and whether old ships are good for marine life. We talk about other kinds of artificial reefs and ask what benefits they can have for our oceans.Archive courtesy of British Pathé and CBS News. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Julia Ross-Roy and Mora Morrison Video Journalist: Baldeep Chahal Editor: Verity Wilde

East of India is a small island called North Sentinel Island. It's home to the Sentinelese people. But no one else is welcome to visit, and if they try, they may face death. The Sentinelese have made it clear they don't want to be contacted and prefer to be alone. But recently, a 24-year-old American tourist allegedly managed to sneak onto the island and leave a can of coke and coconut as an offering. So who are these uncontactable groups and why do people keep trying to visit?The BBC's global population correspondent Stephanie Hegarty tells us more about the uncontactable tribes. And Jonathan Mazower from Survival International, a charity which supports the Indigenous, tribal and uncontacted peoples, explains why social media is putting these groups in further danger.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Mimi Swaby Producers: Mora Morrison, Benita Barden and Emilia Jansson Assistant Editor: Emily Horler

The US company Colossal claim to have brought back the dire wolf from extinction after 12,000 years through genetic engineering. The three pups, called Romulus, Remus and Khaleesi, are now living in an undisclosed nature preserve, unaware that their existence has made headlines around the world. But Colossal aren't finished yet, they want to continue to “de-extinct” other animals, such as the woolly mammoth. BBC Science Correspondent Victoria Gill explains how the experiment was done. How realistic is “de-extinction”? And are these actually dire wolves?Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: William Lee Adams Producers: Josh Jenkins and Emilia Jansson Editor: Emily Horler

Tensions in South Sudan are rising, threatening an already fragile peace deal between President Salva Kiir and his rival First Vice-President Riek Machar.They signed the peace agreement in 2018 to end a five-year civil war that killed nearly 400,000 people. But now, many are worried that South Sudan could be on the brink of another civil war.Ashley Lime, a BBC reporter in Nairobi, explains why this latest violence has escalated and outlines the relationship between these two leaders.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Benita Barden Editor: Verity Wilde

Taiwan's government recently deported Liu Zhenya, a Chinese national who goes by “Yaya in Taiwan” on social media. It's after Liu posted comments on Douyin — the Chinese version of TikTok — that Taiwan's government described as threats to national security. Since then Taiwan has deported two other “mainland wives” (Chinese citizens with Taiwanese husbands) over similar concerns about their social media posts. It's also investigating several others. Benny Lu from BBC Chinese explains why Taiwan's government is concerned about what it calls “Chinese propaganda.” He also discusses how people in China and Taiwan have reacted to the deportations.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: William Lee Adams and Josh Jenkins Editor: Verity Wilde

The International Criminal Court has been in the spotlight recently after it issued several arrest warrants for both Hamas and Israeli officials involved in the Israel-Gaza war. Following this, US President Donald Trump announced sanctions against the court and Hungary also accused them of being ‘politically biased”.Based in the Dutch city of The Hague, the court was established in 2002 and has the power to bring prosecutions for genocide, crimes against humanity and war crimes. But how does it all work? And what powers does the ICC have? Anna Holligan, a BBC correspondent, based in the Netherlands tells us all the information you need to know to understand what's happening with the ICC.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler, Benita Barden and Julia Ross-Roy Editor: Verity Wilde

Donald Trump has introduced tariffs on imports to the US. This has caused a huge reaction across the world with many major stock markets in free fall ever since. Are you confused by all the different words being thrown around? What actually is a tariff? Don't worry - we're joined by BBC business presenter Will Bain to explain everything you need to know about tariffs and how they can impact your life.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Josh Jenkins, Mora Morrison and Emilia Jansson Editor: Verity Wilde

Rhinos are at extreme risk of extinction because of poaching and habitat loss. The work of conservationists has made sure that their numbers have continued to rise, but poaching is still a major threat to their existence. Most of the global rhino population lives in South Africa, where the government has taken big steps to prevent the killings, but recent data shows criminal poachers are still targeting the animalSo scientists are getting experimental with how to protect them!We hear from the BBC Africa's Ayanda Charlie who has speaking to scientists in South Africa coming up with ways to prevent poaching, including using radioactive material in horns as a deterrent. Plus, we get the story behind why there's videos of rhinos hanging upside down from helicopters. Riley Farrell from BBC Future tells us about how choppers are being used in rhino conservation. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Benita Barden Editor: Verity Wilde

The average person who menstruates has their period for 2,535 days (nearly seven years) of their life, according to the UN. That's A LOT of tampons and pads. But the World Bank says 500 million women don't have access to menstrual products. Period poverty - when women and girls can't afford or access sanitary products - is a global problem, affecting lots of countries in Africa as well as the US, UK, India and New Zealand. Gloria Achieng, a BBC journalist in Kenya, talks us through the causes of period poverty and some of the reusable products available. Patricia Kajumba, founder of Glow Up Pads in Uganda, explains how her reusable pads are making a difference and Geena Dunne from the Cova Project in Australia tells us about their menstrual cups. BBC Health reporter Michelle Roberts breaks down some of the myths surrounding period products.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Julia Ross-Roy, Mora Morrison and Hayley Clarke Video Journalists: Gabriel Purcell-Davis and Adam Chowdhury Editor: Verity Wilde

President Trump and his administration is cracking down on international students who have been active in protests against Israel on university campuses.Last week, the US Secretary of State Marco Rubio said at least 300 students had their student visas revoked.Trump officials said the Immigration and Nationality Act allows the State Department to deport non-citizens who are "adversarial to the foreign policy and national security interests" of the US.The arrests are a part of Trump's pledge to combat what the administration has classified as antisemitism on university campuses, which was written into an executive order in January.Nathalie Jimenez, our reporter in the US, takes us through what we know about two of the most prominent cases. And Jake Horton from BBC Verify, explains some of the key terms you need to know.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Benita Barden Editor: Verity Wilde

In this episode we're tracing the route of a shadow ship. These ships are part of a network carrying Russian oil around the world - in violation of international sanctions. And some of them have been accused of sabotage, severing undersea cables that connect European countries. The “shadow fleet” is growing in size and posing a risk to other ships and the environment. BBC journalist Emilia Jansson explains what shadow ships are and what some Scandinavian countries are trying to do about them. And we hear from BBC journalist Tim Whewell who travelled to the Laconian Sea, where shadow ships frequently carry out ship-to-ship transfers of cargo. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: William Lee Adams Producers: Emilia Jansson and Julia Ross-Roy Editor: Verity Wilde

Myanmar is reeling following a powerful earthquake on Friday. The epicentre was near the second largest city Mandalay, home to about 1.5 million people. According to the government, more than 2,000 people have been killed. The country is already in the midst of a worsening humanitarian crisis and civil war. It's also ruled by a military junta who control almost all the media. We hear from Soe Win Than, the editor of the BBC's Burmese service, about why it's difficult to get all the information.Tremors were also felt in Thailand - where thousands were evacuated from cracked buildings and at least 20 people have died.Myanmar is considered one of the world's most geologically active areas and prone to serious natural disasters. We speak to Stephen Hicks, a seismologist and research at University College London, about why earthquakes are so hard to predict.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Benita Barden Editor: Verity Wilde

US Vice-President JD Vance and his wife Usha are scheduled to land in Greenland on Friday afternoon. Their visit comes as President Donald Trump continues his threats to take over the world's largest island, which is a semi-autonomous territory of Denmark. But the planned visit has been scaled back following protests. Rather than visiting a dog sled race and cultural sites, the Vances will instead tour an American space facility. BBC journalist Laura Gozzi explains the basics of what the United States would gain if Greenland became part of the U.S. And we also hear reaction from two 26-year-old Greenlanders, as we try to understand how local people feel about the latest developments.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison and Elena Angelides Editor: Verity Wilde

The global hair wig and extension market was valued at $7.5billion in 2024. Hair is big business - especially in India, which is the world's biggest exporter of human hair, supplying 85% of global demand. Some comes from temples, where people shave off their hair as an act of devotion to the gods. It is then sold at auction. The rest comes from hair pickers who collect it from women's combs, salons and even rubbish dumps. Priti Gupta, a journalist in Mumbai, talks us through the Indian hair industry. We ask why Indian hair is so sought after - and why it's China that's leading the wig export market, instead of India. BBC journalist Nadia Gyane explains where this hair ends up - and if customers know or care where their hair comes from? And drag artist Zeeshan Ali in Mumbai tells us why wigs are so important to their act. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison, Elena Angelides and Julia Ross-Roy Video Journalists: Baldeep Chahal and Kesewaa Browne Editor: Verity Wilde

Thousands of people in Turkey turned out for a seventh night of protests which have so far seen more than 1,400 people detained, including students, journalists and lawyers. Demonstrations began in Istanbul on 19 March, when the city's Mayor Ekrem Imamoglu - who is seen as President Recep Tayyip Erdogan's main political rival - was arrested on corruption charges.In this episode we bring you the background to the protests. Nihan Kalle, a reporter for BBC Monitoring in Istanbul, tells us why President Erdogan is still popular after 22 years in power and why Ekrem Imamoglu is seen as a threat to him. BBC Turkish reporter Özge Özdemir explains the state of democracy in Turkey right now. And we hear directly from some of the student protestors - what changes do they want to see in Turkey?Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison, Julia Ross-Roy and Maria Clara Montoya Editor: Verity Wilde

Fluoride has been in most American tap water for decades. It's there to help to prevent tooth decay, especially in children. Scientists and health officials say it's one of the biggest public health wins of the 20th century. But lately, fluoride has found itself at the centre of a heated debate, with some people concerned about side effects. Robert F Kennedy Jr, the US Health Secretary, is one of those, but he has long expressed views that conflict with scientific evidence.We break down the facts about fluoride, explain how the quantities of it in water is safe and tell you what you need to know with Phoebe Hopson, a BBC reporter, and Michelle Roberts, a doctor and health reporter.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Julia Ross-Roy and Emily Horler Editor: Verity Wilde

Over 500 schools and universities in South Korea are dealing with a deepfake porn crisis. Explicit images and videos of classmates and teachers are being shared. The perpetrators are often students themselves. In fact, 80 per cent of those arrested for creating and distributing deepfakes are teenagers.Hyojung Kim from the BBC's Korean Service explains what's happening and what's being done to stop it.Plus, presenter and campaigner Jess Davies gives us tips on what to do if you have been deepfaked.If you've been affected by any of the issues raised in this episode and you are based in the UK, you can get support from relevant organisations through the BBC Action Line website: https://www.bbc.co.uk/programmes/articles/22VVM5LPrf3pjYdKqctmMXn/information-and-support-sexual-abuse-and-violence.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: William Lee Adams Producers: Julia Ross-Roy, Elena Angelides, Benita Barden and Adam Chowdhury Editor: Verity Wilde

The annual World Happiness Report is out and Finland has been named the happiest country for the eighth year in a row. What makes the Finns so joyful? Emilia Jansson from the What in the World team breaks it down for you. But, is happiness just a fleeting emotion or is there more to it? Sarah Jelbert, a lecturer who teaches courses on the science of happiness explains how you can improve your life satisfaction. And we hear from Sweden and Costa Rica, two countries that rank in the top ten. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Maria Clara Montoya Editor: Julia Ross-Roy

Netflix has a TV show out called Apple Cider Vinegar - it's a dramatisation of a real story of a real influencer who was popular online, and said she was treating a terminal illness with alternative therapies. But it turned out the supposed natural treatments she was promoting didn't do anything, because she didn't really have brain cancer. So it got us thinking - how can you spot false wellness claims?Drinking special tea to make you slimmer. Rubbing bee venom on your face to reduce fine lines and wrinkles. Inserting gemstones into your vagina to regulate menstrual cycles. These are just three on the seemingly endless list which have little to no scientific evidence to support their purported benefits. Jacqui Wakefield, a reporter with the BBC's Global Disinformation Unit, takes us through what makes these trends take off and how we can spot the bad ones online. Makuochi Okafor in our Lagos bureau explains what wellness scams look like in Nigeria. And Maria Clara Montoya tells us about the scene in Latin America.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: William Lee Adams Producer: Emily Horler Video Journalists: Benita Barden and Adam Chowdhury Editor: Verity Wilde

Imagine going on a work or school trip for eight days, but ending up away from home for nine months. Now, imagine that journey was to space. NASA astronauts Suni Williams and Butch Wilmore's spacecraft launched in June last year from Cape Canaveral in Florida. They were taking part in the first crewed test flight of the Starliner spacecraft, developed by Boeing. But there were some technical problems after launch and NASA decided it was too risky to use it to take the astronauts back to Earth. Instead, Suni and Butch would catch the next scheduled flight home, which ended up being nine months later. And now Suni and Butch have splashed down off the coast of Florida in a different spacecraft. Our Science Editor, Rebecca Morelle, explains what went wrong with the mission, if they were really stranded, and what daily life is actually like in space.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Elena Angelides Editor: Verity Wilde

On Sunday night, hundreds of people gathered at Pulse nightclub in Kocani, North Macedonia to watch the popular hip-hop duo DNK perform. It ended in tragedy. A fire ripped through the venue killing 59 people and leaving more than 150 others injured. Reports say the fire was caused by sparks from pyrotechnic devices that hit the ceiling, which was made of highly flammable material. The incident has raised questions about how the venue was able to operate with inadequate safety measures, and if corruption has a role to play.We speak to Saska Cvetkovska, an investigative journalist in Skopje, about what we know so far and how the country is coping with the aftermath of the tragedy. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: William Lee Adams and Benita Barden Editor: Verity Wilde

Taylor Swift fans were gathering in Vienna in August last year, when organisers announced her three-night run would be cancelled, due to a terror threat. Three teenagers were arrested, accused of plotting an attack which was allegedly inspired by the Islamic State group. Speaking at a news conference, an Austrian politician said that “a tragedy was prevented.” This sits within a wider picture of people behind acts like this getting younger. Although the numbers aren't huge, in Europe last year, 1 in 5 terror suspects were under the age of 18. In the UK, it was double that. This data comes from a report written by Thomas Morgan, from the Institute for Economics and Peace in Australia. He joins the podcast to talk about the rise in radicalisation amongst young people.We are also joined by Julian, a counsellor who works with teenagers in Berlin who have been radicalised by far-right ideology. He tells us how sessions run by Violence Prevention Network aim to change attitudes and behaviours of radicalised young people. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler, Elena Angelides and Julia Ross-Roy Editor: Verity Wilde

The Saudi Public Investment Fund (PIF) has agreed to pay $3.5 billion to buy the gaming division of Niantic, the Pokémon Go publisher. It's the latest in a string of entertainment and gaming investments by the PIF. BBC tech reporter Tom Gerken tells us why the Saudi government is spending billions on gaming and what the Kingdom stands to gain from it.Plus: BBC Arabic's Abdirahim Saaed explains where the PIF gets its money and why the gaming scene is so big in Saudi Arabia right now. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: William Lee Adams and Benita Barden Editor: Julia Ross-Roy

An estimated 700 million people visit zoos every year. Some people see these facilities as a great way to teach people about nature and to save species from extinction. Others think they're cruel and unnecessary. It's a heated debate. And now, as more and more people are watching animal rescue videos on Instagram and TikTok, it feels like the debate is hotter than ever. William Lee Adams from the What in the Word team talks us through the history of zoos, including how England's Queen Charlotte (who was featured in Netflix's Bridgerton) came to have twenty kangaroos, and how zoos have evolved. We also discuss their pro and cons. We hear from Tonya Lander, a biology lecturer at the University of Oxford in the UK, 19 year old animal rights activist Nikita Dhawan, and Delcianna Winders, Director of the Animal Law and Policy Institute at Vermont Law and Graduate School in the US. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison and Elena Angelides Video Journalist: Adam Chowdhury Editor: Verity Wilde

In November, fifteen people were killed at the Novi Sad railway station in Serbia when a concrete canopy collapsed. Students in the country have been protesting ever since, claiming that government corruption contributed to the tragedy. The protests have brought the country to a standstill, and on Monday students occupied the public TV station RTS. Slobodan Maričić from BBC Serbian tells us about the student protests, what he's seen when out reporting and the criticism faced by President Aleksandar Vučić. We also hear from several student protestors and Konstrakta, a popular singer. She explains why students have been so effective leading and organising the protests and how their movement has expanded to include people of all ages. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: William Lee Adams, Emilia Jansson and Benita Barden Editor: Verity Wilde

Two weeks ago $1.5 billion vanished from a cryptocurrency platform - it's thought to be the biggest crypto heist ever. They had fallen into the hands of some infamous hackers - the Lazarus Group. These hackers have alleged ties to the North Korean government and have managed to steal huge amounts of money from other crypto platforms before. The BBC's Cyber Correspondent, Joe Tidy, takes us through all the details and explains why North Korean hackers are so untouchable.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Emilia Jansson Editor: Verity Wilde

Plastic pollution has been highlighted as an environmental issue for several years. But experts are now researching whether it poses a potential danger to our health. Microplastics specifically are found in our bodies - even in our brains.The BBC health reporter Smitha Mundasad explains to us what they are and whether we should be worried. And 25-year-old microplastics researcher and influencer Dana Zhaxylykova shares her top tips on how to avoid plastics.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison and Emilia Jansson Editor: Verity Wilde

Just like seemingly all aspects of life these days, AI is going to become more and more present in our dating apps. Match Group, the dating company that owns Tinder and Hinge and has a market value of over $10 billion, recently announced they would increase investment in AI. They're hoping to use AI for a spoken interview with the user to work out what they want to get out of their dating experience, and also provide “effective coaching for struggling users”.Some newer apps focus entirely on AI models and choose your matches for you. As annual downloads of some of the biggest dating apps are going down, could these AI elements improve things? Or will AI cause more concerns?Tamzin Kraftman, a BBC journalist, downloaded one of these new apps, iris, to check it out.We also hear from the app's CEO - Igor Khalatian. He explains what it's all about.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Josh Jenkins Editor: Julia Ross-Roy

Most people in the world speak more than one language and many countries have more than one official national language. But what is it like living as a polyglot? And what advantages can it bring to your health? Studies have shown that speakers of multiple languages get dementia later and even recover better after a stroke.BBC journalist Victoria Uwonkunda describes what it was like growing up as a polyglot and how she deals with speaking multiple languages in her daily life. Turkish polyglot İclal Dağcı , who speaks nine languages, tells us how she uses music to learn languages she finds difficult.Plus, Professor Frédérique Liégeois, a cognitive neuroscientist at University College London, explains the benefits speaking multiple languages has on your brain, and how it could help to maintain your brain health as you get older.Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler, William Lee Adams, Mora Morrison, Emilia Jansson and Elena Angelides Video Journalists: Beatrice Guzzardi and Adam Chowdhury Editor: Verity Wilde