On Today's Podcast

How do you find a ‘lost’ species?

A new journal documents species “lost to science.” Plus, a project to locate lost firefly species in the U.S. and Canada.

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Today's Broadcast

August 14, 2026

At the peak of linguistic diversity, humans may have spoken up to 10 times as many languages as we do today. An immunologist who’s been on both sides of vaccine hesitancy talks about what drives it, what gets missed, and how to build trust. Plus, a new journal documents species “lost to science,” and a conservation project aims to locate lost firefly species in the U.S. and Canada.

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Video

Breakthrough: Bitter Water

For Navajo hydrologist Karletta Chief, water is sacred. When a mine spill contaminated a vital river in the Navajo Nation, she decides to investigate the potential environmental and health impacts it had on her community.

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