Freakonomics Radio

• EXTRA: The Downside of Disgust (Update)

  It’s a powerful biological response that has preserved our species for millennia. But now it may be keeping us from pursuing strategies that would improve the environment, the economy, even our own health. So is it time to dial down our disgust reflex?  You can help fix things — as Stephen Dubner does in this 2021 episode — by chowing down on some delicious insects. SOURCES:Paul Rozin, professor of psychology at the University of Pennsylvania.Val Curtis, late disgustologist at the London School of Hygiene and Tropical Medicine.Sandro Ambuehl, economist at the University of Zurich.Emily Kimmins, R&D lead for the sensory and consumer-science team for Kraft Heinz.Iliana Sermeno, former chef at The Black Ant. RESOURCES:“Stink Bugs Could Add Cilantro Flavor to Red Wine,” by Alex Berezow (Live Science, 2017).“Edible insects: Future Prospects for Food and Feed Security,” by the F.A.O. (United Nations, 2013).“I Hate to Break it to You, but You Already Eat Bugs,” by Kyle Hill (Scientific American, 2013).“Five Banned Foods and One That Maybe Should Be,” by Leah Binkovitz (Smithsonian Magazine, 2012).“Effects of Different Types of Antismoking Ads on Reducing Disparities in Smoking Cessation Among Socioeconomic Subgroups,” by Sarah J. Durkin, Lois Biener, and Melanie A. Wakefield (American Journal of Public Health, 2009).“Flesh Trade,” by Stephen Dubner and Steven Levitt (The New York Times, 2006).“Feeding Poultry Litter to Beef Cattle,” by Jay Daniel and K.C. Olson (University of Missouri, 2005). EXTRAS:"Why Does Everyone Hate Rats?" by Freakonomics Radio (2025).

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• 624. The Animal No One Loves, Until They Do

  To most people, the rat is vile and villainous. But not to everyone! We hear from a scientist who befriended rats and another who worked with them in the lab — and from the animator who made one the hero of a Pixar blockbuster. (Part three of a three-part series, “Sympathy for the Rat.”) SOURCES:Bethany Brookshire, author of Pests: How Humans Create Animal VillainsJan Pinkava, creator and co-writer of "Ratatouille," and director of the Animation Institute at the Film Academy Baden-Württemberg.Julia Zichello, evolutionary biologist at Hunter College. RESOURCES:"Weekend Column: Rat’s End, or, How a Rat Dies," by Julia Zichello (West Side Rag, 2024).Pests: How Humans Create Animal Villains by Bethany Brookshire (2022)."Rats: the history of an incendiary cartoon trope," by Archie Bland (The Guardian, 2015)."Catching the Rat: Understanding Multiple and Contradictory Human-Rat Relations as Situated Practices," by Koen Beumer (Society & Animals, 2014)."Effects of Chronic Methylphenidate on Dopamine/Serotonin Interactions in the Mesolimbic DA System of the Mouse," by Bethany Brookshire (Wake Forest University, 2010)."A New Deal For Mice," by C.C. Little (Scientific American, 1935).

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• 623. Can New York City Win Its War on Rats?

  Even with a new rat czar, an arsenal of poisons, and a fleet of new garbage trucks, it won’t be easy — because, at root, the enemy is us. (Part two of a three-part series, “Sympathy for the Rat.”) SOURCES:Kathy Corradi, director of rodent mitigation for New York City.Robert Corrigan, urban rodentologist and pest consultant for New York City.Ed Glaeser, professor of economics at Harvard University.Robert Sullivan, author of Rats: Observations on the History and Habitat of the City’s Most Unwanted Inhabitant.Jessica Tisch, New York City police commissioner. RESOURCES:"Increasing rat numbers in cities are linked to climate warming, urbanization, and human population," by Jonathan Richardson, Elizabeth McCoy, Nicholas Parlavecchio, Ryan Szykowny, Eli Beech-Brown, Jan Buijs, Jacqueline Buckley, Robert Corrigan, Federico Costa, Ray Delaney, Rachel Denny, Leah Helms, Wade Lee, Maureen Murray, Claudia Riegel, Fabio Souza, John Ulrich, Adena Why, and Yasushi Kiyokawa (Science Advances, 2025)."The Next Frontier in New York's War on Rats: Birth Control," by Emma Fitzsimmons (New York Times, 2024)."The Absurd Problem of New York City Trash," by Emily Badger and Larry Buchanan (New York Times, 2024)."Mourning Flaco, the Owl Who Escaped," by Naaman Zhou (The New Yorker, 2024).Rats: Observations on the History & Habitat of the City's Most Unwanted Inhabitants, by Robert Sullivan (2005). EXTRAS:"The Downside of Disgust," by Freakonomics Radio (2021)

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• The Show That Never Happened

  A brief meditation on loss, relativity, and the vagaries of show business.RESOURCES:Billie Eilish: The World's a Little Blurry, documentary (2021)Genius & Anxiety: How Jews Changed the World, 1847-1947, by Norman Lebrecht (2019)The War Room, documentary (1993) EXTRAS:“Is San Francisco a Failed State? (And Other Questions You Shouldn’t Ask the Mayor)” by Freakonomics Radio (2025)“Ari Emanuel Is Never Indifferent,” by Freakonomics Radio (2023)

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• 622. Why Does Everyone Hate Rats?

  New York City’s mayor calls them “public enemy number one.” History books say they caused the Black Death — although recent scientific evidence disputes that claim. So is the rat a scapegoat? And what does our rat hatred say about us? (Part one of a three-part series.) SOURCES:Bethany Brookshire, author of Pests: How Humans Create Animal Villains.Kathy Corradi, director of rodent mitigation for New York City.Ed Glaeser, professor of economics at Harvard University.Nils Stenseth, professor of ecology and evolution at the University of Oslo. RESOURCES:"On Patrol With the Rat Czar," by Mark Chiusano (Intelligencer, 2024)."How Rats Took Over North America," by Allison Parshall (Scientific American, 2024)."Where Are the Rats in New York City," by Matt Yan (New York Times, 2024)."Pests: How Humans Create Animal Villains" by Bethany Brookshire (2023)."Human ectoparasites and the spread of plague in Europe during the Second Pandemic," by Nils Stenseth, Katharine Dean, Fabienne Krauer, Lars Walløe, Ole Christian Lingjærde, Barbara Bramanti, and Boris Schmid (Proceedings of the National Academy of Sciences, 2018). EXTRAS:"Freakonomics Radio Live: 'Jesus Could Have Been a Pigeon.'" by Freakonomics Radio (2018).

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