In honor of our Earth, on her day, we have two stories about the overlooked, ignored, and neglected parts of nature. In the first half, we learn about an epic battle that is raging across the globe every day, every moment. It's happening in the ocean, and your very life depends on it. In the second half, we make an earnest, possibly foolhardy, attempt to figure out the dollar value of 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.Sign up 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 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.

A couple years ago, an entomologist named Martha Weiss got a letter from a little boy in Japan saying he wanted to replicate a famous study of hers. We covered that original study on Radiolab more than a decade ago in an episode called Goo and You – check it out here – and in addition to revealing some fascinating secrets of insect life, it also raises big questions about memory, permanence and transformation. The letter Martha received about building on this study set in motion a series of spectacular events that advance her original science and show how science works when a 12-year-old boy is the one doing it. Martha’s daughter, reporter Annie Rosenthal, captured all of it and turned it into a beautiful audio story called “Caterpillar Roadshow.” It was originally published in a brand new independent audio magazine called Signal Hill, which happens to have been created in part by two former Radiolab interns (Liza Yeager and Jackson Roach, both of whom worked on this piece), and we loved it, so we’re presenting an excerpt for you here.Special thanks to Annie Rosenthal, Liza Yeager, Jackson Roach, Leo Wong, Omar Etman, the whole team at Signal Hill, Carlos Morales, John Lill, Marfa Public Radio and Emma Garschagen.EPISODE CREDITS: Reported by - Annie RosenthalProduced by - Annie Rosenthalwith help from - Leo Wong and Omar EtmanSound design contributed by - Liza Yeager and Jackson RoachFact-checking by - Alan Deanand Edited by - Liza Yeager and Jackson RoachEPISODE CITATIONS:Audio - Listen to the original Radiolab episode, Goo and You, here (https://zpr.io/qh9xqpkXzk7j).Or the Signal Hill podcast here (https://zpr.io/CDfwyK7Zkrva).Guests - And if you want to learn more about Martha Weiss, and her work, head over here (https://zpr.io/aBw2YsqWB6NZ).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 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.

In an episode first aired in 2012, Lulu Miller introduces us to Jeff Lockwood, a professor at the University of Wyoming, who spent a part of his career studying a particularly ferocious set of insects: Gryllacrididae. Or, as Jeff describes them, "crickets on steroids." They have crushingly strong, serrated jaws, and they launch all-out attacks on anyone who gets in their way--whether it's another cricket, or the guy trying to take them out of their cages.In order to work with the gryllacridids, Jeff had to figure out how to out-maneuver them. And as he devised ways to keep from getting slashed and bitten, he felt like he was getting to know them. Maybe they weren't just mindless brutes ... but their own creatures, each with their own sense of self. And that got him wondering: what could their fierceness tell him about the nature of violence? How well could he understand the minds of these insects, and what drove them to be so bloody?That's when the alarm bells went off. Jeff would picture his mentor, Dr. LaFage, lecturing him back in college--warning him not to slip into a muddled, empathic mood ... not to let his emotions sideswipe his objectivity. And that would usually do the trick--Jeff would think of LaFage, and rein himself back in.But then one night, something happened that gave Dr. LaFage's advice a terrible new kind of significance. Tamra Carboni tells us this part of the story, and challenges Jeff's belief that there's a way to understand it.Hey, one other thing, if you live, or are planning to be, in NYC on April 22nd, come check out our NEW LIVE SHOW!!Radiolab Presents: Viscera - The Elixir of LifeWhere: Caveat Theater on the Lower East Side, NY NY When: April 22nd Doors @ 7 pmGET YOUR TICKETS, HERE!! (https://www.caveat.nyc/events/radiolab-presents-viscera-%E2%80%93-the-elixir-of-life-4-22-2025)Sign up 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 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.

Earth can sustain life for another 100 million years, but can we?In this episode, we partnered with the team at Planet Money to take stock of the essential raw materials that enable us to live as we do here on Earth—everything from sand to copper to oil— and tally up how much we have left. Are we living with reckless abandon? And if so, is there even a way to stop? This week, we bring you a conversation that’s equal parts terrifying and fascinating, featuring bird poop, daredevil drivers, and some staggering back-of-the-envelope math.EPISODE CREDITS:Reported by - Jeff Guo and Latif NasserProduced by - Pat Walters and Soren Wheelerwith production help from - Sindhu Gnanasambandan and editing help from - Alex Goldmark and Jess JiangFact-checking by - Natalie Middleton 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 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.

We all think we know the story of pregnancy. Sperm meets egg, followed by nine months of nurturing, nesting, and quiet incubation. this story isn’t the nursery rhyme we think it is. In a way, it’s a struggle, almost like a tiny war. And right on the front lines of that battle is another major player on the stage of pregnancy that not a single person on the planet would be here without. An entirely new organ: the placenta.In this episode, which we originally released in 2021, we take you on a journey through the 270-day life of this weird, squishy, gelatinous orb, and discover that it is so much more than an organ. It’s a foreign invader. A piece of meat. A friend and parent. And it’s perhaps the most essential piece in the survival of our kind.Special thanks to Diana Bianchi, Julia Katz, Sam Behjati, Celia Bardwell-Jones, Mathilde Cohen, Hannah Ingraham, Pip Lipkin, and Molly Fassler.EPISODE CREDITS: Reported by - Heather Radke and Becca Bresslerwith help from - Molly WebsterProduced by - Becca Bresslerwith help from - Pat Walters, Maria Paz GutierrezEPISODE CITATIONS:Articles:Check out Harvey’s latest paper published with Julia Katz.Sam Behjati's latest paper on the placenta as a "genetic dumping ground". 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 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.

It’s easy to take growth for granted, for it to seem expected, inevitable even. Every person starts out as a baby and grows up. Plants grow from seeds into food. The economy grows. That stack of mail on your table grows. But why does anything grow the way that it does? In this hour, we go from the Alaska State Fair, to a kitchen in Berkeley, to the deep sea, to ancient India, to South Korea, and lots of places in between, to investigate this question, and uncover the many forces that drive growth, sometimes wondrous, sometimes terrifying, and sometimes surprisingly, unnervingly fragile.Special thanks to Elie Tanaka, Keith Devlin, Deven Patel, Chris Gole, James Raymo and Jessica SavageEPISODE CREDITS: Reported by - Matt Kielty, Becca Bressler, Pat Walters, Sindhu Gnanasambandun, Annie McEwen, Simon Adlerwith help from - Rae MondoProduced by - Matt Kielty, Becca Bressler, Pat Walters, Sindhu Gnanasambandun, Annie McEwen, Simon AdlerSound design contributed by - Jeremy Bloomwith mixing help from - Jeremy BloomFact-checking by - Emily Krieger and Natalie Middletonand Edited by - Pat WaltersEPISODE CITATIONS:Audio:“The Joy of Why,” (https://www.quantamagazine.org/tag/the-joy-of-why/) Steve Strogatz’s podcast. Articles:“The End of Children,”(https://zpr.io/WBdg6bi8xwnr) The New Yorker, by Gideon Lewis-KrausBooks:Finding Fibonacci (https://zpr.io/3EjviAttUFke) by Keith DevlinDo Plants Know Math (https://zpr.io/bfbTZDJ8ehx5) by Chris GoleSingup 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 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.

In 2017 our sister show, More Perfect aired an episode all about RBG, In September of 2020, we lost Supreme Court Justice Ruth Bader Ginsburg to the annals of history. She was 87. Given the atmosphere around reproductive rights, gender and law, we decided to re-air this More Perfect episode dedicated to one of her cases. Because it offers a unique portrait of how one person can make change in the world. This is the story of how Ginsburg, as a young lawyer at the ACLU, convinced an all-male Supreme Court to take discrimination against women seriously - using a case on discrimination against men. Special thanks to Stephen Wiesenfeld, Alison Keith, and Bob Darcy.Supreme Court archival audio comes from Oyez®, a free law project in collaboration with the Legal Information Institute at Cornell.EPISODE CREDITS: Reported by - Julia LongoriaProduced by - Julia LongoriaOriginal music and sound design contributed by - Alex OveringtonOur 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.

Today we uncover an invisible killer hidden, for over a hundred years, by reasonable disbelief. Science journalist extraordinaire Carl Zimmer tells us the story of a centuries-long battle of ideas that came to a head, with tragic consequences, in the very recent past. His latest book, called Airborne, details a largely forgotten history of science that never quite managed to get off the ground. Along the way, Carl helps us understand how we can fail, over and over again, to see a truth right in front of our faces. And how we finally came around thanks to scientific evidence hidden inside a song.EPISODE CREDITS:Reported by - Carl ZimmerProduced by - Sarah Qariwith mixing help from - Jeremy BloomFact-checking by - Natalie MiddletonEPISODE CITATIONS:Books - Check out Carl Zimmer’s new book, Airborne (https://zpr.io/Q5bdYrubcwE4).Articles - Read about the study on the Skagit Valley Chorale COVID superspreading event (https://pubmed.ncbi.nlm.nih.gov/32979298/).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 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.

Today, a story that starts small and private, with one woman alone in her bathroom, as she makes a quiet, startling discovery about her own body. But that small, private moment grows and grows, and pretty soon it becomes something so big that it has impacted the life of every person reading this right now… and all that without the woman ever even knowing the impact she had. We originally aired this story back in 2010, but we thought we’d bring it back today, as questions about bodily autonomy circle with renewed force.EPISODE CREDITS: Reported by - Rebecca SklootSignup 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 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.

Annie McEwen went to a mountain in Pennsylvania to help catch some migratory owls. Then Scott Weidensaul peeled back the owl’s feathery face disc, so that she could look at the back of its eyeball. No owls were harmed in the process, but this brief glimpse into the inner workings of a bird sent her off on a journey to a place where fleshy animal business bumps into the mathematics of subatomic particles. With help from Henrik Mouristen, we hear how one of the biggest mysteries in biology might finally find an answer in the weird world of quantum mechanics, where the classical rules of space and time are upended, and electrons dance to the beat of an enormous invisible force field that surrounds our planet.A very special thanks to Rosy Tucker, Eric Snyder, Holly Merker, and Seth Benz at the Hog Island Audubon Camp. Thank you to the owl-tagging volunteers Chris Bortz, Cassie Bortz, and Cheryl Faust at Hawk Mountain Sanctuary. Thank you to Jeremy Bloom and Jim McEwen for helping with the owls. Thank you to Isabelle Andreesen at the University of Oldenburg and thank you to Andrew Farnsworth at the Cornell Lab of Ornithology, as well as Nick Halmagyi and Andrew Otto. Thank you everyone!EPISODE CREDITS: Reported by - Annie McEwenProduced by - Annie McEwenOriginal music and sound design contributed by - Annie McEwenwith field recording and reporting help by - Jeremy S. BloomFact-checking by - Natalie Middletonand Edited by - Becca BresslerEPISODE CITATIONS:Places - Check out Hog Island Audubon Camp at https://hogisland.audubon.org/. If you like birds, this is the place for you. The people, the food (my god the food), the views, the hiking, and especially the BIRDS are incredible. And if it’s raptors you’re specifically interested in, I highly recommend visiting Hawk Mountain Sanctuary www.hawkmountain.org. You can watch these amazing birds wheeling high above a stunning forested valley, if you’re into that sort of thing… and maybe if you’re lucky you’ll even catch sight of some teeny weeny owls.Books Scott Weidensaul will make you love birds if you don’t already. Check out his books and go see him talk! http://www.scottweidensaul.com/Website If you want to learn more about the fascinating and wildly interdisciplinary field of magnetoreception in birds, you can dig into the work of Henrick Mouritsen at the University of Oldenburg and his colleagues at the University of Oxford here: https://www.quantumbirds.eu/ 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 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.