Your gut’s feelings

What happens when researchers reexamine some of the basic facts about the Black Death? They start rewriting history and rethinking blame. Guests: Hannah Barker, professor at Arizona State University; Ulf Büntgen, professor at the University of Cambridge; Martin Bauch, historian a ...  Show more

One of the world’s most biodiverse aquifers is full of strange, blind creatures that have evolved in isolation for millions of years. But one is missing. (Originally aired in 2022) Guests: ⁠Benji Jones⁠, Vox senior correspondent; ⁠Andy Gluesenkamp⁠, Conservation biologist and her ...  Show more

Scientists are tuning in to a surprising conversation happening inside us—between our gut and our brain. Host Rachel Feltman chats with Maya Kaelberer, an assistant professor at the University of Arizona’s department of physiology, to explore how intestinal cells and microbiomes ...  Show more

Mitochondria are known as the powerhouse of the cell—but new research suggests they might be far more complex. Columbia University’s Martin Picard joins Scientific American’s Rachel Feltman to explore how these tiny organelles could be communicating and what that might mean for e ...  Show more

This month's episode is an encore presentation of an interview with Dr. Guy Caldwell from the University of Alabama. Dr. Caldwell explains how tools from molecular biology make it possibl ...

What makes an apology sound sincere? Psychologist Shiri Lev-Ari joins host Rachel Feltman to explore how the effort we put into our words—especially through longer, easier-to-understand language—can signal genuine remorse. New research reveals that even subtle linguistic choices ...  Show more