In the English language, there are few words that convey a sense of finality quite like "extinction." The notion that a species could completely disappear from the planet forever — down to literally the last individual — is incredibly sobering.

But how "final" is extinction? How can scientists be sure that an animal has, in fact, completely disappeared forever?

As sampling and surveying techniques improve and more and more eyes and camera lenses are trained on broader and broader swaths of the planet, supposedly extinct animals like the Coelacanth and Attenborough's Long-beaked Echidna have been rediscovered like Lazarus rising from the grave.

In this quick-hit episode, we pose the question to our resident biologist of how extinction is determined, whether it's reversible and, if so, why bringing an animal back might not be a morally sound path to take.

Learn more about how our intervention saved the critically endangered Laurel Dace from near-certain extinction: https://youtu.be/NPcm_d-PsXk?si=xRy63_gWZ_ktvExF

Episode cast

• Casey Phillips, host, senior communications specialist, certifiably not extinct
• Dr. Bernie Kuhajda, aquatic conservation biologist

The Podcast Aquatic is made possible by support from The Tennessee Conservationist, the official magazine of Tennessee State Parks.

Printed sustainably on 100% post-consumer recycled paper with UV ink, each issue is filled with fascinating stories about Tennessee’s native species, rich history, and unique culture.

It’s also your guide to exploring state parks and planning your next outdoor adventure.

Become a Tennessee Conservationist and subscribe at tnconservationist.org.

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