Eels play an important ecological role in many rivers and streams, but they’re so eel-usive that even eel scientists have been challenged to observe them mating in the wild. Ellen Ruppel Shell is author of the 2024 book Slippery Beast: A True Crime Natural History, with Eels, and she sheds light on the eel’s murky ecology and path through the seafood industry.

And the relentless heating of the Earth is prompting people to move after climate-related catastrophes and amid more gradual changes. Journalist Abrahm Lustgarten is the author of On the Move: The Overheating Earth and the Uprooting of America, about the northward migration he anticipates as Americans seek to escape punishing heat, fire, and drought.

Also stargazing has profoundly shaped who we are as human beings, and gave rise to science, religion, and origin stories from diverse traditions. Roberto Trotta, the author of the new book Starborn: How the Stars Made Us (And Who We Would Be Without Them) joins us to discuss how studying the night sky shaped science and why satellites now threaten our connection to the stars.

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