Outside/In

• Why is there so much roadkill?

  For humans, roads epitomize freedom. For wildlife, it’s a different story: a million animals are killed by cars every day in the US alone. How did our infrastructure turn so deadly? And what are people trying to do about it?In this episode, we look at how two very different species are impacted by roads. Along the way, we visit a turtle rescue clinic, and hear about a celebrity cougar that was trapped in the Hollywood Hills.This episode was first produced in 2023.Right now, the Trump administration is planning to rescind the Roadless Rule – a regulation that restricts the building of new roads in nearly 60 million acres of US forests. Conservationists warn that this will fragment forests and threaten endangered species. A public comment period on the plan is open until September 19th.Featuring Ben Goldfarb, Alexxia Bell, Natasha Nowick, and Michaela Conder.For full credits and transcript, visit outsideinradio.org. SUPPORTOutside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram or join our private discussion group on Facebook. LINKSSeptember 19, 2025 is the deadline to submit a comment about the potential effects of rescinding the Roadless Rule.Check out Crossings: How Road Ecology is Shaping the Future of Our Planet, by Ben Goldfarb.Read more about The Turtle Rescue League in Of Time and Turtles: Mending the World, Shell by Shattered Shell, by Sy Montgomery. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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• The cold truth about refrigeration

  In the early 1900s, people didn’t trust refrigerated food. Fruits and vegetables, cuts of meat… these things are supposed to decay, right? As Nicola Twilley writes, “What kind of unnatural technology could deliver a two-year old chicken carcass that still looked as though it was slaughtered yesterday?”But just a few decades later, Americans have done a full one-eighty. Livestock can be slaughtered thousands of miles away, and taste just as good (or better) by the time it hits your plate.  Apples can be stored for over a year without any noticeable change. A network called the “cold-chain” criss-crosses the country, and at home our refrigerators are fooling us into thinking we waste less food than we actually do. Today, refrigeration has reshaped what we eat, how we cook it, and even warped our very definition of what is and isn’t “fresh.” Featuring Nicola Twilley.For full credits and transcript, visit outsideinradio.org. SUPPORTOutside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram or join our private discussion group on Facebook. LINKSYou can find Nicola’s new book “Frostbite: How Refrigeration Changed Our Food, Our Planet and Ourselves,” at your local bookstore or online. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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• All Wings Considered

  We’re catching some air this week, and talking things with wings!  Quandaries range from the practical (how do different animal and insect wings differ?) to the ethereal (this includes dragons). Here’s the questions we’ll be answering…What makes wings different?How have wings in nature inspired human flight? Did we ever solve the colony collapse problem with bees?Why do so many cultures have dragon myths?Featuring Jonathan Rader, Tim Burbery, Lauren Ponisio, and Andrew Howley. For full credits and transcript, visit outsideinradio.org.For our next Outside/Inbox roundup, we’re looking for questions about healing! We’re casting a wide net here: homeopathy, neuroplasticity, chronic disease, plant resiliency. Send us your questions by recording yourself on a voice memo, and emailing that to us at [email protected].  Or you can call our hotline: 844-GO-OTTER.SUPPORTOutside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram or join our private discussion group on Facebook.LINKSThe video of the sandhill crane landing lives on TikTok. Here’s that video of an albatross walking on land after years at sea. Timothy Burbery is the author of Geomythology: How Common Stories Reflect Earth Events.The hypothesis connecting the mythical griffin and Protoceratops fossils was popularized by Adrienne Mayor, author of The First Fossil Hunters: Dinosaurs, Mammoths, and Myth in Greek and Roman Times.Here's a paper critiquing Mayor's interpretations, "Did the horned dinosaur Protoceratops inspire the griffin?"A USGS volcanologist on what geologists missed for so long in the stories of Pele, from indigenous Hawaiian oral tradition. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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• Saving the shipwrecks of Stellwagen Bank

  Shipwrecks captivate our imagination, and are the subject of many books, academic papers, and movies—from the world-famous Titanic, to sunken World War II warships, to ancient fishing canoes. Some describe them as time capsules of our maritime history, waiting to be discovered and opened.But there’s a group of people who are drawn to shipwrecks for very different reasons, and it sometimes leads to the demise of the wrecks themselves: fishermen.In this episode, why archaeologists and fishermen have sometimes been at odds over shipwrecks, and the federal government program that’s bringing them together under one common cause.Featuring Ben Roberts, Mike Bailey, Tom Hill, Calvin Meyers, and Ben Haskell.Produced by Felix Poon. For full credits and transcript, visit outsideinradio.org. SUPPORTOutside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram or join our private discussion group on Facebook. LINKSLearn more about the many known shipwrecks of Stellwagen Bank, including the Portland, known as “New England’s Titanic.”Check out some of the other research projects at Stellwagen Bank on topics as varied as whales, sand lances, and seabirds. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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• Your brain on GPS

  GPS is essential these days. We use it for everything, from a hunter figuring out where the heck they are in the backcountry, to a delivery truck finding a grocery store, to keeping clocks in sync.But our reliance on GPS may also be changing our brains. Old school navigation strengthens the hippocampus, and multiple studies suggest that our new reliance on satellite navigation may put us at higher risk for conditions like dementia.In this episode (first released in 2024), we map out how GPS took over our world—from Sputnik’s Doppler effect to the airplane crash that led to its widespread adoption—and share everyday stories of getting lost and found again.Featuring Dana Goward, M.R. O’Connor, Christina Phillips, Michelle Liu, Julia Furukawa, and Taylor Quimby.Produced by Nate Hegyi. For full credits and transcript, visit outsideinradio.org. LINKSIn 2023, Google Maps rerouted dozens of drivers in Los Angeles down a dirt road to the middle of nowhere to avoid a dust storm. Maura O’Connor traveled from rural Alaska to the Australian bush to better understand how people navigate without GPS—and sometimes even maps. Here’s the peer-reviewed study, published in the journal Nature, that found that young people who relied on GPS for daily driving had poorer spatial memories. Another study out of Japan found that people who use smartphone apps like Google Maps to get around had a tougher time retracing their steps or remembering how they got to a place compared to people who use paper maps or landmarks. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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