This video explores five species once declared extinct that were later found alive in surprising locations. It follows the circumstances that allowed these animals to persist unnoticed for years or ...

A long-lost Bolivian killifish has been found alive, revealing a globally important hotspot for seasonal killifish diversity at risk from deforestation. Researchers have confirmed the rediscovery of ...

Hidden in Bolivia’s seasonal wetlands, a small fish that scientists had written off as extinct for more than two decades has ...

Just because a species is presumed extinct doesn’t mean it’s gone forever. Here are four glowing examples of this unique, and felicitous, phenomenon. Not all species that have been classified as ...

On a lawn inside the Bronx Zoo, rows of headstones display multiple animal species, making for an eerie display during the ...

It's the reptilian feel-good story of the year: A species of giant tortoise thought to be extinct for 150 years turns out to be alive and living on an even more remote island than the one from which ...

A version of the dodo bird (Raphus cucullatus) could make a return someday soon. Colossal Biosciences announced this week several milestones in its quest to bring the extinct species back to life. On ...

If an animal hasn't been seen in the wild for more than fifty years, it's technically extinct. But academic criteria haven't stopped some disappeared species from reappearing, confounding official ...

Mark Hebblewhite receives funding from National Science Foundation. Benjamin Larue and Jonathan Farr do not work for, consult, own shares in or receive funding from any company or organization that ...

New research identifies 10,443 critically endangered species worldwide, with effective protection strategies available if funding and political will follow. More than 1,500 species, or 15% of the ...