Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

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 ...

Over a million species of animals and plants are now hanging by a thread, more than ever before in human history, says the International Science-Policy Platform on Biodiversity and Ecosystem Services ...

From dire wolves to woolly mammoths, the idea of resurrecting extinct species has captured the public imagination. Colossal Biosciences, the Dallas-based biotech company leading the charge, has made ...

Quick Take Six animal species, including the slender-billed curlew and Christmas Island shrew, were confirmed extinct in 2025 ...

Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...

Millions of years of isolation have shaped Australia’s extraordinary mammal fauna into species unlike anywhere else in the ...

No other animal is as inexorably linked with extinction as the dodo, an odd-looking flightless bird that lived on the island of Mauritius in the Indian Ocean until the late 17th century. The arrival ...

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 ...

Brandon Ballengée’s ‘Frameworks of Absence’ (2006–ongoing) in the Ronald Feldman Fine Arts booth at the 2015 Armory Show (photo by Jillian Steinhauer/Hyperallergic) (click to enlarge) The animals have ...

The dire wolf was one of the most formidable predators in the Americas during the last Ice Age, possessing a body more stout and a skull more robust than those of modern wolves. The species went ...