On Today's Podcast

What cats and dogs hear + A ‘smell map’ of the nose

What do cats and dogs hear that we don't? Plus, what a “smell map” of the receptors in a mouse nose tells us about this sense.

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Today's Broadcast

May 1, 2026

Birds are living dinosaurs whose ancestors include T. rex and giant penguins. Understanding their past can help us imagine their future. Plus, an executive order issued by President Trump aims to fast-track research for psychedelics, including ibogaine. What is it? And, measuring microplastics can be hard, partly because they’re everywhere—including the lab. One researcher is working on solutions.

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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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