On Today's Podcast

How Do Bacteria Talk To Each Other?

In a story from May, how understanding the ways bacteria communicate could lead to better disease treatments for humans.

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October 24, 2025

A new documentary puts viewers in the shoes of Neanderthals and early humans, giving an intimate glimpse into humans’ evolutionary history. Plus, cell-cultured salmon is showing up on menus. How does it compare to the real thing? And, how mental health information on social media can be both revelatory and misleading.

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Teacher Feature: Ethnobotanist Tom Carlson

Science Friday pays tribute to a great science teacher. “Office hours are some of my favorite hours of the week,” says Tom Carlson, a medical doctor, ethnobotanist, and instructor of 1700 students annually at the University of California, Berkeley.

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