How do you find a ‘lost’ species? episode artwork

EPISODE · Aug 14, 2026 · 18 MIN

How do you find a ‘lost’ species?

from Science Friday · host Kathleen Davis, Shoshannah Buxbaum, Matt Foristor, Candace Fallon

The earth is facing a biodiversity crisis, and there’s a lot of attention on species that are threatened, or at risk of dying out completely. But, there’s another critter category that’s a little more mysterious: species that are “lost to science.” This means scientists aren’t quite sure how many of them there are out there—or if there are any left at all. Producer Kathleen Davis talks to biologist Matt Forister, who is so dedicated to finding more information about these lost species that he created a whole scientific journal about them. Plus, 28 of the 178 firefly species in the United States and Canada are currently lost to science, according to the community science project Firefly Atlas. We’re joined by firefly researcher Candace Fallon, who is working to confirm which firefly butts are still blinking and which have burnt out. Want to help find fireflies near you? Find out how to participate in the Firefly Atlas. Guests: Dr. Matt Foristor is a professor of biology at the University of Nevada-Reno and editor-in-chief of the Journal of Lost Species. Candace Fallon is a senior endangered species conservation biologist at the Xerces Society for Invertebrate Conservation. Transcripts for each segment will be available the week after the show airs on sciencefriday.com. Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374 Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Episode metadata supplied by the publisher feed · Published Aug 14, 2026

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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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How do you find a ‘lost’ species?

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