Radiolab

Back in 2017, reporters Kristen Clark and David Conrad came to us with a story that dug into the difficult and often dark places discrimination creates. We start in Venice, Italy, where they meet gondolier Alex Hai. On the winding canals in the hidden parts of Venice, we learn about the nearly 1000-year old tradition of the Venetian Gondolier, and how the global media created a 20-year battle between that tradition and a supposed feminist icon. We circled back to Alex in 2026, to find out where the canal of life ended up leading after our initial reporting, and we’ve included some heartbreaking and heartwarming updates on Alex’s life at the end of this episode. Special thanks to Alexis Ungerer, Summer, Alex Hai, Kevin Gotkin, Silvia Del Fabbro, Sandro Mariot, Aldo Rosso and Marta Vannucci, The Longest Shortest Time (Hillary Frank, Peter Clowney and Abigail Keel), Tim Howard, Nick Adams/GLAAD, Valentina Powers, Florence Ursino, Ann Marie Somma, Alex Overington, Jeremy Bloom and the people of Little Italy. EPISODE CREDITS: Reported by - David Conrad and Kristen Clark. Produced by - Annie McEwen and Molly Webster. with help from - Anisa Vietze Fact-checking for the update by - Angely Mercado OTHER COOL THINGS: Books - The Gondolier, by Alex Hai Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

After reading something that said her menstrual cycle changes her brain each month, Senior Correspondent Molly Webster goes on a reporting mission to see if that’s true, and, if so, how. This journey into sex hormones and the brain involves females and males, and exacting self-experimentation. It gets into PTSD, and ends with a new twist on self-care (hint: it’s biological). And, it starts to reveal a sneaky truth: that each one of us is at the mercy of a crashing sea of chemicals inside of us – those things we call hormones. Special thanks to Emily Jacobs, Laura Pritschet, Pavel Shapturenka, and Dr. Catherine Woolley. EPISODE CREDITS: Hosted by - Molly Webster Reported by - Molly Webster Produced by - Mona Madgavkar with help from - Molly Webster Fact-checking by - Diane A. Kelly EPISODE CITATIONS: Articles - **The experiments we feature in this episode are called: 28andMe, 28andOC, and 28andHe, all of which took place at Emily Jacobs lab at the University of California, Santa Barbara.** The 28 Project For more on how much variability there is between female and male animals, check out this “groundbreaking” study, referenced by Emily Jacobs in our episode Sex Bias in Neuroscience and Biomedical Researchhttps://zpr.io/ZRgKZzdNejUA Dr. Catherine Woolley has revolutionized the field of neuroscience and sex hormones, here’s more about her work … Sex Differences in the Brain Get Down to the Molecular Level Sexhttps://zpr.io/UNCLE9J782N5Scientist.comHormonal Effects on the Brainhttps://zpr.io/DvNM9EkXdtGG Data sets - 28andMe and 28andOChttps://zpr.io/hbXVNTVp2Q7j28andHehttps://zpr.io/sZXhfMbMwKb7 Audio - In the episode, we mention Dr. Russ Poldrack and the Midnight Scan Club, as inspo for self-experimentation The Midnight Scan Clubhttps://zpr.io/CLBhNQSxK844 Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In honor of Father's Day, here is a family friendly bonus episode from our kids' podcast Terrestrials. What does it really mean to be a dad? In the animal world, fathers have long been painted as aggressive or absent. At best providers and protectors, but certainly not caregivers. And yet for every tale of a lion or chimp dad eating its own young (yikes!), there’s another creature who tells a sweeter story. Two HUMAN dads bring us on this DADventure: Dr. Eduardo Fernandez-Duque, who has spent decades studying owl monkey dads in the forests of Argentina, and Michael Feigelson, who once worried he wasn't cut out for the softer side of parenting. They introduce us to seahorse dads who get pregnant, poison dart frog dads who give piggyback rides to their tadpoles, Darwin frogs who swallow their eggs to keep them safe, burying beetles who build "corpse cribs," jacana birds who do all the egg-sitting, and stickleback fish who construct intricate underwater nests for their young. Along the way, we learn that nature doesn’t offer just one model of fatherhood. Alongside Mother Nature... there just might be a Father Nature, too. Special thanks to the Van Leer Foundation for the support of this episode. Resources on Animal fatherhood https://www.owlmonkeyproject.com/An interview with Eduardo in Yale NewsLauren O’Connell lab – frog behaviourShort explainer: frog parenting researchStickleback fish parenting study (Alison Bell)Alison Bell lab video Human fatherhood Fathertime by Sarah Blaffer HrdyECM interview: evolution of “man the nurturer”Lee Gettler – biology of fatherhood (video)Lee Gettler article in Early Childhood MattersDarby Saxbe book: Dad BrainDarby Saxbe Article in Early Childhood Matters Talks, films & convenings Yale Conference on FatherhoodLive Recording of Yale Conference: Fathers and Fatherhood: From Molecules to Modern FamiliesFathertime documentary Campaigns & global perspectives Equimundo's State of World's fathers reportMen Care Changemakers JourneyParenting Out Loud (Elliot Rae) Terrestrials was created by Lulu Miller with WNYC studios. This episode was produced by Tanya Chawla, with sound design by Mira Burt-Wintonick. Sarah Sandbach is our Executive Producer. Our team also includes Ana González, Alan Goffinski, Natalia Ramirez, and Joe Plourde. Fact checking by Angely Mercado. Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

A little while back, our friends over at On the Media released a gripping and immersive reporting series about FEMA, the agency that is supposed to be there for all of us in the wake of disaster. In American Emergency (https://zpr.io/MtrUmJU3yEMW), OTM investigates how the agency tasked with saving America became distrusted, despised… and defunded. Today we talk to On the Media co-host Micah Loewinger about how this project came out, what reporting went into making it happen, and play a couple of fun and truly surprising bits of the story that the OTM team uncovered. And it’s a story that highlights the ideal and promise of good government, right alongside the frustration with bureaucracy and mismanagement, and of course the undercurrent of profound mistrust in governmental power. As natural disasters are getting more extreme and less predictable, this series makes sense of that tangle, and provides a prescient peek into FEMA’s future. Special thanks to On the Media. To hear Micah in person, talking more about the complex history of FEMA, join him on June 24th at WNYC's The Greene Space (https://wnyc.org/events/otm-fema). Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

One morning, Oliver Sipple went out for a walk. A couple hours later, to his own surprise, he saved the life of the President of the United States. In a story we reported back in 2017, we explain how in the days that followed, Sipple’s split-second act of heroism turned into a rationale for making his personal life into political opportunity. What happens next makes us wonder what a moment, or a movement, or a whole society can demand of one person. And how much is too much? Through newly unearthed archival tape, we hear Sipple himself grapple with some of the most vexing topics of his day and ours - privacy, identity, the freedom of the press - not to mention the bonds of family and friendship. Special thanks to Jerry Pritikin, Michael Yamashita, Stan Smith, Duffy Jennings; Ann Dolan, Megan Filly and Ginale Harris at the Superior Court of San Francisco; Leah Gracik, Karyn Hunt, Jesse Hamlin, The San Francisco Bay Area Television Archive, Mike Amico, Jennifer Vanasco and Joey Plaster. EPISODE CREDITS: Reported by - Reported by Latif Nasser and Tracie Hunte Produced by - Produced by Matt Kielty, Annie McEwen, Latif Nasser and Tracie Hunte. Sign up for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Signup (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

A couple summers ago, Radiolab reporter Alex Neason got out of the shower and almost stepped on her worst nightmare: an American Cockroach. It was flipped onto its back, struggling, and for a split second, Alex swears she felt the spiny tickle of its legs on the underside of her bare foot. And, like every other time she has come into contact with a roach, this sent her into a debilitating spiral of fear, anger, and disgust. This week, Alex tries to understand what might be behind her fear, in the hopes she can overcome it. And in doing so, Alex learns more about these so-called pests than she could have ever wanted to. Special thanks to Jessica Ware, Timothy Marzullo, Alexandra Bell, and Changlu Wang EPISODE CREDITS: Reported by - Alex Neason Produced by - Jessica Yung and Annie McEwen with mixing help from - Jeremy Bloom Fact-checking by - Sophie Samiee and Edited by - Pat Walters EPISODE CITATIONS: Articles - American Cockroaches, Racism, and the Ecology of the Slave Shiphttps://zpr.io/UNKsMz7ZaLvbArcadia Books - Pests: How Humans Create Animal Villains (https://zpr.io/6E5wJBM4Kvcv) The Cockroach Papershttps://zpr.io/CvKePYxEMEAWCockroach https://zpr.io/UuEAjmfqKccQ Sign up for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Signup (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

This episode makes three earnest, possibly foolhardy, attempts to put a price on the priceless. We figure out the dollar value for an accidental death, another day of life, and the work of bats and bees as we try to keep our careful calculations from falling apart in the face of the realities of life, and love, and loss. In this story you’ll hear references to some of the issues that were on our minds when it first came out in 2014: wars in the middle east, drug costs and health care practices. Even as the exact shapes of these issues have evolved over the past dozen years, we feel the underlying questions are relevant and timeless: What is life worth? What about the earth? EPISODE CREDITS: Reported by - Molly Webster, Simon Adler, Tim Howard, and Matt Kielty with help from - Shahib Al-Masawa Produced by - Matt Kielty, Tim Howard Fact-checking by - Michelle Soraka EPISODE CITATIONS: Books - Memoir of A Debulked WomanBeing Mortal Sign up for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Signup (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

For most of human history, people went about their daily lives with a worm or two (or fifty) in their guts. Only in the past century, with pharmaceuticals and sanitation practices, have we made significant strides towards deworming the whole of humanity. And that’s typically been thought of as a good thing, because having too many worms in your body can–quite literally–suck the life out of you. But is it possible to have… too few worms? Science wonders if deworming ourselves has actually led to an increase in certain chronic diseases. On this episode, we dive into Necator americanus, a.k.a. the American Hookworm, and its mysterious relationship with each of us. We trace the hookworm’s 118-year journey from a demonized economic depressant, to its use as a desperate D.I.Y. immunosuppressant, to its potential as a medical treatment for a number of chronic diseases, everything from asthma to MS. We’re bringing back two stories from our 2009 episode Parasites plus new research on hookworms and autoimmune diseases, reported by Molly Webster Special thanks to Ethan Hein for the use of his remix of Mozart's Piano Concerto No. 21. Plus, Doris Pierce, and Dan and Alice Hadley. EPISODE CREDITS: Reported by - Pat Walters and Molly Webster with help from - {{wREPORTERS}} Produced by - Matt Kielty with help from - Rebecca Rand Fact-checking by - Diane A. Kelly and Edited by - Arianne Wack EPISODE CITATIONS: Articles - Effect of experimental hookworm infection on insulin resistance in people at risk of type 2 diabetes (https://pubmed.ncbi.nlm.nih.gov/37495576/) by Giacomin PR et al. Nat Commun. 2023 Jul 26 Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

With all of the black-and-white moralizing in our world today, we decided to bring back an old show from 2011 about the little bit of bad that's in all of us...and the little bit of really, really bad that's in some of us. Cruelty, violence, badness... in this episode we begin with a chilling statistic: 91% of men, and 84% of women, have fantasized about killing someone. We take a look at one particular fantasy lurking behind these numbers, and wonder what this shadow world might tell us about ourselves and our neighbors. Then, we reconsider what Stanley Milgram's famous experiment really revealed about human nature (it's both better and worse than we thought). Next, we meet a man who scrambles our notions of good and evil: chemist Fritz Haber, who won a Nobel Prize in 1918...around the same time officials in the US were calling him a war criminal. And we end with the story of a man who chased one of the most prolific serial killers in US history, then got a chance to ask him the question that had haunted him for years: why? EPISODE CREDITS: Reported by - Pat Walters and Latif Nasser Produced by - Pat Watlers with help from - Carter Hodge. Sign up for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Signup (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

In 2017, Wayne Hsiung and a crew of animal rights activists from Direct Action Everywhere broke into a Utah pig farm run by Smithfield Foods, one of the largest pork distributors in the world. They were there to capture video of what they say were thousands of mistreated and abused animals kept in tiny metal cages barely bigger than their bodies. As they were leaving, they took two sick piglets out with them. Prosecutors in Utah charged Wayne with burglary and theft. What came next was the court battle that he wanted all along. During his trial, Wayne made a truly bizarre argument that forced the jury, and all of us, to stare straight at our complicated, sometimes uncomfortable relationship with animals. This week on the show, we grapple with the impossible question at the center of it: What is the value of a piglet? Special thanks to Kim Nederveen Pieterse, Nathan Peereboom, Jo Eidman, Sam Kozloff, Rachel Gross, Alex Allaux, and Joan Schaffner. EPISODE CREDITS: Reported by - Sindhu Gnanasambandan and Jae Minard Produced by - Sindhu Gnanasambandan with help from - Pat Walters with mixing help from - Jeremy Bloom Fact-checking by - Diane A. Kelly and Edited by - Alex Neason and Pat Walters EPISODE CITATIONS: Articles - A Rabbit, is a rabbit, is a rabbit… Not under the Lawhttps://zpr.io/ezUPRE36VZVkThe Global Journal of Animal LawAnimal Rights Activists Are Acquitted in Smithfield Piglet Casehttps://zpr.io/ayaV9gDneNswThe New York TimesMeet the Activists Risking Prison to Film VR in Factory Farmshttps://zpr.io/HEXdpf5Q7VABWired Audio - VR Puts Viewers Inside the Grisly Reality of Factory Farmshttps://zpr.io/pMHq5RVkzUM3Wired Our newsletter comes out every Wednesday. It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Gordon and Betty Moore Foundation, Science Sandbox, a Simons Foundation Initiative, and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hi Radiolab listeners, we want to hear from you! Take this podcast survey and let us know how you feel about the show. It only takes about 20 minutes and your feedback will help us make our podcast better! There are no wrong answers, we want your honest takes. You can help out by taking the survey here (www.radiolab.org/survey).

For much of history, tree canopies were pretty much completely ignored by science. It was as if researchers said collectively, "It's just going to be empty up there, and we've got our hands full studying the trees down here! So why bother?" But then around the mid-1980s, a few ecologists around the world got curious and started making their way up into the treetops using any means necessary (ropes, cranes, hot air dirigibles) to document all they could find. It didn't take long for them to realize not only was the forest canopy not empty, it was absolutely filled to the brim with life. You've heard of treehouses? How about tree gardens?! This week, we bring you a story we first released in 2022. We journey up into the sky and discover forests above the forest. We learn about the secret powers of these sky gardens from ecologist Korena Mafune, and we follow Nalini Nadkarni as she makes a ground-breaking discovery that changes how we understand what trees are capable of. P.S. This episode is a layer cake of arboreal surprises (including the reappearance of a certain retired host. LATERAL CUTS: From Tree to Shining Tree (https://zpr.io/4cHtDdYTuNxT): The episode that started this journey, where we look down instead of up. EPISODE CREDITS: Reported by - Annie McEwen Produced by - Annie McEwen EPISODE CITATIONS: Videos - Inside the Fight to Save an Ancient Forest (and the Secrets it Holds) (https://zpr.io/XKipP2z4NFiM), by Michael Werner, Joe Hanson, and the PBS Overview team. We first learned about the magical world of the canopy from this beautiful video. It features Korena Mafune’s research up in the treetops, as well as the people who have dedicated their lives to saving what’s left of the old growth forests. We highly recommend checking it out! Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hi Radiolab listeners, we want to hear from you! Take this podcast survey and let us know how you feel about the show. It only takes about 20 minutes and your feedback will help us make our podcast better! There are no wrong answers, we want your honest takes. You can help out by taking the survey here (www.radiolab.org/survey).

There’s something rotten in the cows of Denmark. And Minnesota. And Wisconsin. And Idaho. What could cause a previously thriving herd of majestic dairy cattle to stop drinking water and start drinking … urine? A Danish farmer calls a special investigator, who takes one look at his farm and nopes the heck out of there, refusing to return, citing “bad energy” coming from something nearby … a big building covered in Viking runes. It’s not magic. It’s an invisible force that’s far more common. And yet deeply mysterious. This episode plunges producers Matt Kielty and Simon Adler knee-deep in a decades-old dairy farm controversy, rooted in a fundamental suspicion of the invisible streams of electrons that keep our world humming. Special thanks to Dr. Liz Brock EPISODE CREDITS: Reported by - Matt Kielty and Simon Adler with help from - Clara Grunnet and Rebecca Rand Produced by - Matt Kielty with help from - Maria Paz Gutierrez Original music from - Jeremy Bloom and Matt Kielty Sound design contributed by - Jeremy Bloom Mixed by - Jeremy Bloom Fact-checking by - Angely Mercado and Sophie Samiee and Edited by - Pat Walters EPISODE CITATIONS: Books - The Great Energy Transition: America from 1876 to 1929https://zpr.io/3PStsDgidpj5Powering American Farms: The Overlooked Origins of Rural Electrificationhttps://zpr.io/GdQ4pMCy4DAVBeyond the Barn – Dodging Cow Patties for 50 Years by a Country Vethttps://zpr.io/S8qS9HLEQBJe Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation. Hi Radiolab listeners, we want to hear from you! Take this podcast survey and let us know how you feel about the show. It only takes about 20 minutes and your feedback will help us make our podcast better! There are no wrong answers, we want your honest takes. You can help out by taking the survey here (www.radiolab.org/survey).

In an episode first aired back in 2025 on our sister show, Terrestrials, we take you on a musical journey all about beavers. Few mammals have a bigger positive impact on the planet than the beaver. With its bright orange buck teeth, the creature is an expert engineer that brings life wherever it waddles and even fights fires. Our story begins in the Bronx river, once known as the “open sewer” of New York City. After some humans decide to clean it up, we meet one of the river’s residents - José the beaver. We learn about the US government parachuting beavers out of planes into the mountains. And finally head to California where we discover how one beaver family saved acres of land from burning. Special thanks to author Ben Goldfarb, Christian Murphy from the Bronx River Alliance and Dr. Emily Fairfax. Terrestrials was created by Lulu Miller with WNYC Studios. This episode was produced by Ana González and sound-designed by Mira Burt-Wintonick. Our team includes Alan Goffinski, Joe Plourde and Tanya Chawla. Fact checking was by Diane Kelly. Our advisors for this show were Ana Luz Porzecanski, Nicole Depalma, Liza Demby and Tovah Barocas. EPISODE CITATIONS: Books - Eager: The Surprising, Secret Life of Beavers and Why They Matterhttps://zpr.io/4QLuhrSMfurkBeaverland: How One Weird Rodent Made Americahttps://zpr.io/3BbaViJK8Hk3 Videos - drop beavers out of planeshttps://zpr.io/y2JJPwwyr3Bp Leave It to Beavershttps://zpr.io/JVGZYmNCTy6h Articles - How reintroducing beavers can enhance ecological health https://zpr.io/KNxz3MtKL9sVBeaver Dams Help Wildfire-Ravaged Ecosystems Recover Long after Flames Subsidehttps://zpr.io/kAnjEUPvPUeJ HEY GROWN-UPS! Love the show? Leave us a ⭐⭐⭐⭐⭐ rating and review on your podcast app—it helps curious listeners find us! We want to hear from you! Share your thoughts about Terrestrials with us. Subscribe to our weekly newsletter for bite-sized essays, activities, and ways to connect with the show. Follow us on YouTube, Instagram, and TikTok for behind-the-scenes extras and more. Listen to original music from Terrestrials on Spotify, Apple Music, or our music page. Got a badgering question for the team? Email us at terrestrialspodcast@wnyc.org or submit a voice memo with your name, age, and your question using this form! Terrestrials is made possible in part by listeners like you. Support the show by joining Radiolab’s membership program, The Lab—and we’ll send you a special thank-you gift from our team! Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

This week, in an episode we first aired in 2022, we flip the Disney story of life on its head thanks to a barrel of seawater, a 1970s era computer, and underwater geysers. It’s the chaos of life. Latif, Lulu, and our Senior Producer Matt Kielty were all sitting on their own little stories until they got thrown into the studio, and had their cherished beliefs about the shape of life put on a collision course. From an accidental study of sea creatures, to the ambitions of Stephen J Gould, to an undercooked theory that captured the world’s imagination, we undo the seeming order of the living world and try to make some music out of the wreckage. (Bonus: Learn how Francis Crick really thought life got started on this planet). EPISODE CREDITS: Reported by - Latif Nasser, Matt Kielty, Heather Radke, Lulu Miller and Candice Wang Produced by - Matt Kielty and Simon Adler with help from - Arianne Wack Original music and sound design contributed by - Matt Kilety, Simon Adler, Alan Goffinski, and Jeremy Bloom EPISODE CITATIONS: Articles - Chaos in a long-term experiment with a plankton community https://zpr.io/j6sYXKfDzPCGet al. Nature Chaos theory discloses triggers and drivers of plankton dynamics in stable environmenthttps://zpr.io/qHKENA3SJ8MLSci Rep. Books - Full Househttps://zpr.io/pMQZfyPcRzD4Extinction: Bad Genes or Bad Luck?https://zpr.io/pPVNugUKWpi4Rereading the Fossil Record: The Growth of Paleobiology as an Evolutionary Disciplinehttps://zpr.io/YBjJxuXjydPNThe Vital Question: Energy, Evolution, and the Origins of Complex Lifehttps://zpr.io/LzfueEqUWNHb Life Itself: Its Origin and Naturehttps://zpr.io/KPZf57eEVMBX Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

Doctor and special correspondent Avir Mitra takes Executive Editor Soren Wheeler, plus a live studio audience, on a journey from the operating room to inside the body to the farm to the sewers and back again—searching for answers to an alarming threat to humanity’s existence as we know it: antibiotic resistance in bacteria. This live show, performed in New York City and also in Little Rock, Arkansas, is part of a series we’re doing with Avir that we are calling “Viscera.” Each event is a conversation that takes the audience on a journey into a quirk or question or mystery inside of us, and gives them a visceral experience of the viscera within us. The previous installment of the series was called “The Elixir of Life.” (https://radiolab.org/podcast/the-elixir-of-life) Special thanks to all of Little Rock Public Radio (especially Grace Zafasi and Jonathan Seaborn), Thomas Patterson, The Greene Space staff, CALS Ron Robinson Theater, Tom Philpott, Stephen Roach, Kate Shaw, Alex Wong, Maryn McKenna, and Kerri McClimen. The video version of this performance will be available soon on our Youtube Channel, playlist Radiolab Presents: Viscera. Till then, you can check out our other episodes in the Viscera series. EPISODE CREDITS: Reported by - Avir Mitra Produced by - Jessica Yung Sound design contributed by - Jeremy Bloom and Jessica Yung Fact-checking by -Natalie Middleton EPISODE CITATIONS: If you are a patients or a doctor, and you are interested in phage therapy, reach out to Dr. Steffanie Strathdee at IPATH@ucsd.edu Videos: Radiolabdeep dive Books: The Perfect Predator https://theperfectpredator.com/Plucked (https://zpr.io/PudGMEuzgU9X) Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

A strange brew that's hard to resist, even for a modern day microbe. In the war on devilish microbes, our weapons are starting to fail us. The antibiotics we once wielded like miraculous flaming swords seem more like lukewarm butter knives. But in this episode, originally released in 2015, we follow an odd couple, of a sort, to a storied land of elves and dragons. There, they uncover a 1,000-year-old secret that makes us reconsider our most basic assumptions about human progress and wonder: what if the only way forward is backward? Special thanks to Steve Diggle, Professor Roberta Frank, Alexandra Reider and Justin Park (our Old English readers), Gene Murrow from Gotham Early Music Scene, Marcia Young for her performance on the medieval harp and Collin Monro of Tadcaster and the rest of the Barony of Iron Bog. Can’t get enough of that sweet, sweet antibiotic resistance content? Then you’ll be over the moon about next week’s release. It’s the podcast cut of our most recent installment of our live show series called Viscera. This one features executive editor Soren Wheeler and Avir Mitra, and it’s all about how our millenia's-long war against bacteria came to a tipping point in this modern age. Subscribe or follow our show on your favorite streaming platform and you’ll be the first to know when it drops. EPISODE CREDITS: Reported by - Latif Nasser Produced by - Matt Kielty and Soren Wheeler EPISODE CITATIONS: Articles - Uncovering the multifaceted mechanism of action of a historical antimicrobial (https://zpr.io/mucw6Td6LBxT) by Harrison, F et al, 2026 bioRxv (PREPRINT). In this article Freya and her team describe the mechanisms under which Bald’s Remedy actually works. Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

If a species is horrible enough, do we have the right to kill it forever? Seventy years ago, a nightmare parasite feasted on the live flesh of warm-blooded creatures in North America: the screwworm. That is, until a young scientist named Edward F. Knipling discovered a crucial screwworm weakness and hatched a sweeping project to wipe them out. Knipling’s seemingly zany plan to spray screwworms out of planes all over the continent— with US taxpayer money— succeeded, becoming one of humanity’s biggest environmental interventions ever. Today, screwworms have been gone so long that none of us in North America even remember them. But now, they’re coming back. And they’re forcing us to ask: in an era of climate change and rapid mass extinction— should we kill off a species on purpose? Special thanks to James P. Collins, Max Scott, Amy Murillo, Daniel Griffin, Phil Kaufman, Katie Barnhill, Arthur Caplan, Ron Sandler, Yasha Rohwer, Aaron Keefe, Gwendolyn Bogard, Maria Sabate, Meredith Asbury, and Joanne Padrón Carney EPISODE CREDITS: Reported by - Sarah Qari with help from - Latif Nasser Produced by - Sarah Qari Sound design contributed by - Sarah Qari Fact-checking by - Emily Krieger EPISODE CITATIONS: **The latest information on screwworm outbreaks and precautions: screwworm.gov Videos: hereherehttps://zpr.io/VQReQbfznCrq Podcasts: Spotify playlisthttps://zpr.io/PNMEM274G7vhThe Disappearing Spoon The Screwiest and Perhaps Most Original Idea of the 20th Centuryhttps://zpr.io/UYf6dR2yG3eNCRISPR & gene driveshttps://zpr.io/UYf6dR2yG3eNRadiolab Starter Kithttps://zpr.io/QpPnrHAZVQLR Articles: The AtlanticAmerican Milk Has Changedhttps://zpr.io/xebbdq2MWV4LThe ‘Man-Eater’ Screwworm Is Cominghttps://zpr.io/ECmjCs7ScbS4America’s Never-Ending Battle Against Flesh-Eating Wormshttps://zpr.io/PNMEM274G7vhpaperhttps://zpr.io/yqNC3q5FbCcqScience Archival materials: Screwworm Eradication Recordshttps://zpr.io/dY7zuVdGYKjf Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

In this episode, we consider a creature we often don’t think much about—the snail. And not just snails, but their sex lives. Which, as it turns out, is epic. There is persuasion and subterfuge, spaghetti penises and co-copulation. And this very surprising habit—erm kink—of making tiny arrows (actually!) and stabbing each other with them. Known as a “love dart,” these limestone daggers aren’t just a strange trick of nature—they have a deep evolutionary purpose. Special thanks to Menno Schilthuizen and Aaron Chase. EPISODE CREDITS: Hosted by - Molly Webster Reported by - Molly Webster Produced by - Mona Madgavkar, Annie McEwen, Molly Webster Sound design contributed by - Mona Madgavkar, Annie McEwen Fact-checking by - Diane A. Kelly and Edited by - Alex Neason EPISODE CITATIONS: Videos - A love dart being DARTED! (https://zpr.io/rYhLwXhaxQQP) – Molly has watched this video so many times Articles - Changes in the reproductive system of the snail Helix aspersa caused by mucus from the love dart.https://zpr.io/xxjuCcTyiVJVThe snail's love-dart delivers mucus to increase paternity. A love-dart at the heart of sexual conflict in snailshttps://zpr.io/X2ANHPaEg5sr Books - “Nature’s Nether Regions: What the Sex Lives of Bugs, Birds, and Beasts Tell Us About Evolution, Biodiversity, and Ourselves” (https://zpr.io/ktMvJbZciCdD) by evolutionary biologist Menno Schilthuizen. Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

In this episode, first aired in 2014, we examine three very different kinds of black boxes—spaces where we know what’s going in, we know what’s coming out, but can’t see what happens in-between. From the darkest parts of metamorphosis to a sixty-year-old secret among magicians, and the nature of consciousness itself, we shine some light on three questions. But for each, we contend with an answerless space, leaving just enough room for the mystery and magic, always wondering what’s inside the Black Box. EPISODE CREDITS: Reported by Tim Howard and Molly Webster Produced by Tim Howard and Molly Webster EPISODE CITATIONS: Radio Show: ABC's Keep Them Guessing (https://tinyurl.com/9r9zmftr) LATERAL CUTS: Last year we shared a story on our feed about butterfly researcher Dr. Martha Weiss, and how she befriended a little boy on the other side of the world who wanted to do his own caterpillar memory study. Martha’s daughter Annie Rosenthal captured the whole adventure on tape and produced a gorgeous audio feature, “Caterpillar Roadshow,” which was first published in the audio magazine Signal Hill. You can find it on our feed (https://zpr.io/xPdAYXFUMr4s) –or on Signal Hill’s website. (https://zpr.io/a4bjPKeXJQWK) Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

Before he was even born, Sarah and Ross Gray knew that their son Thomas wouldn’t live long. But as they let go of him, they made a decision that reverberated through a world that they never bothered to think about. Years later, after a couple of awkward phone calls, they go on a quest and manage to meet the people and places for whom Thomas’ short life was an altogether different kind of gift. We originally made this story back in 2015, but we wanted to play it again because we love that it brings a view of science that is redemptive, tender, and unexpected. Since we first released this episode, Sarah Gray wrote a book called A Life Everlasting (https://zpr.io/GVYisRaqe9d6), it’s a memoir about Thomas that dives into the world of organ donation and medical science. She’s also written a beautiful short story about shame called The Lacemaker Fairy Tale (https://zpr.io/Li5BMtfHmf92). And, right now she’s working on a script for a movie called Raincheck. EPISODE CREDITS: Reported by - Jad Abumrad with help from - Latif Nasser LATERAL CUTS - The CathedralThe Immortal Life of Henrietta Lackshttps://radiolab.org/podcast/the-immortal-life-of-henrietta-lacks Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.