Some species officially bid us farewell this year. They may have long been gone, but following more recent assessments, ...

The Christmas Island shrew, a species of cone snail (Conus lugubris), the slender-billed curlew, and three Australian mammals ...

A tiny fish long feared lost has resurfaced in Bolivia, offering a rare conservation success story amid widespread habitat ...

A March study shows that an apex predator thought to be extinct since the 1980s may still be prowling the Indonesian island of Java. The paper examined a single hair found following a potential ...

As a critically endangered species, the manumea could be considered mostly dead, but there’s a big difference between that ...

Not every extinct animal vanished in plain sight. Some disappeared into remote regions humans barely study. This list ranks ...

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 ...

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 ...

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 ...

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 ...

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 ...