Crabs All the Way Down

Until recently, scientists assumed humans were the only species in which females went through menopause, and lived a substantial part of their lives after they were no longer able to reproduce. And they had no idea why that happens, and why evolution wouldn’t push females to keep reproducing right up to the end of their lives. But after a close look at some whale poop, and a deep dive into chimp life, we find several new ways of thinking about menopause and the real purpose of this all too often overlooked second act of life.  Special thanks to Danielle Friedman, Rachel Gross, and Kate Radke. EPISODE CREDITS: Reported by - Heather Radke and Becca BresslerProduced by - Sarah Qari and Becca BresslerFact-checking by - Emily Kriegerand Edited by  - Becca Bressler EPISODE CITATIONS:Books - Check out everything Heather Radke writes, including Butts: A Backstory, cause it’s all that good, here: Heather Radke (www.heatherradke.com). Find any one of Lucy Cooke’s book, including Bitch:On the Female of the Species, here: Lucy Cooke (http://www.lucycooke.tv/)And check out everything Caroline Paul has on offer, including Tough Broad, here:  Caroline Paul (https://www.carolinepaul.com/) Socials - Heather Radke: https://www.instagram.com/radhradkeLucy Cooke: https://www.instagram.com/luckycooke/ Audio:Becca Bressler’s Greatest Hits - Everybody's Got OneThe Shark Inside You Growth Lateral cuts - Butt Stuff 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 [email protected]. 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: the story of astrophysicist Charity Woodrum. Charity is an extragalactic astronomer who studies the life and death of galaxies, why some galaxies burn bright and others dim and sputter out. And in the midst of an unthinkable grief in her personal life, she discovers something in the sky – a new kind of light that would guide her path forward. Special thanks to Megan Stielstra, Jad Abumrad, Michael Woodrum, Gina Vivona, and Clair Reilly-Roe. EPISODE CREDITS: Reported by - Lulu MillerProduced by - Jessica YungFact-checking by - Diane Kelly Radiolab | Lateral uts:Our episode The Darkest Dark (https://radiolab.org/podcast/the-darkest-dark) could be of interest to those seeking the deepest unknowns. EPISODE CITATIONS:Music -Clair Reilly-Roe’s song “Sky Full of Ghosts” (https://zpr.io/JgauhRnj7qpX) Articles -A new documentary on Charity Woodrum’s story: Space, Hope and Charity (https://www.spacehopecharityfilm.com/) 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 [email protected]. 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, two conversations from the archives about parts of the world that are imperceptible to us, verging on almost unthinkable. We start with a moment of uncertainty in physics. Inspired by an essay written by physicist and novelist Alan Lightman, called The Accidental Universe (https://zpr.io/4965dUdNqtpQ), taken from a book of the same name. Former Radiolab co-host Robert Krulwich pays a visit to Brian Greene to ask if the latest developments in theoretical physics spell a crisis for science. He finds that we've reached the limit of what we can see and test, and we’re left with mathematical equations that can't be verified by experiments or observation. Then, come along as we kick rocks. And end up tumbling down a philosophical rabbit hole where the solid things around us might not be solid at all. We talk to Jim Holt, author of Why Does the World Exist? (https://zpr.io/UqHpLnDx2QNx) who points out that when you start slicing and sleuthing in subatomic particle land, trying to get to the bottom of what makes matter, you mostly find empty space. Your hand, your chair, the floor, it's all made up of mostly nothing. Robert and Jim go toe-to-toe over whether the universe is made up of solid bits and pieces of stuff, or a cloudy foundation that more closely resembles thoughts and ideas. 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 [email protected]. 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.

Back in 2017 our colleagues at More Perfect gathered a room full of people together to debate a straight forward question: Can free speech go too far? Today, eight years have passed and plenty has changed, but this question feels alive as ever. And so we’re re-airing More Perfect’s The Hate Debate. Taped live at WNYC's Jerome L. Greene Performance Space, Elie Mystal, Ken White and Corynne McSherry duke it out over whether the first amendment needs an update in our digital world. Special thanks to Elaine Chen, Jennifer Keeney Sendrow, and the entire Greene Space team. Additional engineering for this episode by Chase Culpon, Louis Mitchell, and Alex Overington. EPISODE CITATIONS: Videos - If watching is more your speed, you can see the event, in its entirety, here: https://www.youtube.com/live/azcIcVDyVTM?si=ZqpQHQfvTKr2jS0z There’s other Radiolabs for that - Further recommended listening What Up Holmes and Post No Evil. 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 [email protected]. 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 hour of Radiolab, former co-hosts Jad and Robert set out in search of order and balance in the world around us, and ask how symmetry shapes our very existence -- from the origins of the universe, to what we see when we look in the mirror. Along the way, we look for love in ancient Greece, head to modern-day Princeton to peer inside our brains, and turn up an unlikely headline from the Oval Office circa 1979. EPISODE CITATIONS: Videos - Back in the day, when we first aired this episode, the film collective Everynone, filmmakers Will Hoffman, Daniel Mercadante and Julius Metoyer III were inspired with our yearning for balance, and aimed to visually reveal how beautiful imperfect matches can be.Radiolab Presents: Symmetry (https://youtu.be/zEQskIsHKT8) 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/X and Facebook @radiolab, and share your thoughts with us by emailing [email protected]. 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.