First up on the podcast, producer Meagan Cantwell and Contributing Correspondent Sara Reardon discuss alternative approaches to animal testing, from a heart on a chip to a miniorgan in a dish.
Next on the show, Expert Voices columnist Melanie Mitchell and host Sarah Crespi dig into AI lies. Why do chatbots fabricate answers and pretend to do math? Mitch ... Show More
Aug 21
New insights into endometriosis, and mapping dengue in Latin America
First up on the podcast, Staff Writer Meredith Wadman joins host Sarah Crespi to discuss recent advances in understanding endometriosis—a disease where tissue that resembles the lining of the uterus grows outside the uterus, causing pain and other health effects. The pair talk ab ... Show More
32m 7s
Aug 7
Why anteaters keep evolving, and how giant whales get enough food to live
First up on the podcast, Online News Editor David Grimm brings stories on peacock feathers’ ability to emit laser light, how anteaters have evolved at least 12 times, and why we should be thanking ketchup for our French fries. Next on the show, rorqual whales, such as the massive ... Show More
28m 8s
Jul 31
Wartime science in Ukraine, what Neanderthals really ate, and visiting the city of the dead
First up on the podcast, Contributing Correspondent Richard Stone joins host Sarah Crespi to talk about the toll of the ongoing conflict in Ukraine and how researchers have been mobilized to help the war effort. In June, Stone visited the basement labs where Ukrainian students mo ... Show More
51m 33s
Feb 2025
Hippopotomology (HIPPOS) with Rebecca Lewison
Do they sweat blood? Will one kill you? What are cocaine hippos? Is Moo Deng… okay? Actual real life Hippopotomologist Dr. Rebecca Lewison explains how hippos have some of the best – and worst – PR. We chat about pet hippos, subspecies, daily diets, the current state of hippo co ... Show More
1h 6m
Oct 2022
Nadine Weidman, "Killer Instinct: The Popular Science of Human Nature in Twentieth-Century America" (Harvard UP, 2021)
A historian of science examines key public debates about the fundamental nature of humans to ask why a polarized discourse about nature versus nurture became so entrenched in the popular sciences of animal and human behavior. Are humans innately aggressive or innately cooperative ... Show More
1h 9m
May 2023
Daniel Ruiz-Serna, "When Forests Run Amok: War and Its Afterlives in Indigenous and Afro-Colombian Territories" (Duke UP, 2023)
In When Forests Run Amok: War and Its Afterlives in Indigenous and Afro-Colombian Territories (Duke University Press, 2023) Daniel Ruiz-Serna follows the afterlives of war, showing how they affect the variety of human and nonhuman beings that compose the region of Bajo Atrato: th ... Show More
1h 15m
Apr 2025
Talk Tracks Ep 7: Telepathy Between Species
This week on The Talk Tracks, Ky sits down with Anna Breytenbach, an inter-species communicator who bridges the language divide between humans, animals, insects and plants. From tracking wild creatures across remote landscapes to helping captive lions return to the wild, Anna has ... Show More
1h 2m
Nov 2023
Nancy Lindisfarne and Jonathan Neale, "Why Men?: A Human History of Violence and Inequality" (Hurst, 2023)
How did humans, a species that evolved to be cooperative and egalitarian, develop societies of enforced inequality? Why did our ancestors create patriarchal power and warfare? Did it have to be this way? These are some of the key questions that Dr. Nancy Lindisfarne and Dr. Jonat ... Show More
1h 14m