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

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

The moa were a group of giant flightless birds that lived in New Zealand. They disappeared from Earth about 600 years ago, ...

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

An elusive wild cat long feared extinct in Thailand has been rediscovered three decades after the last recorded sighting, ...

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 ...

The Christmas Island shrew is thought to be at least the third mammal species to go extinct on the island as a direct result ...

Swedish scientists retrieved RNA from an extinct Tasmanian tiger to help trace the genes that were active in the animal’s ...

Woolly mammoths haven't been seen for 4,000 years, but if scientists are successful, they could be walking around Alaska in just five years. Colossal Biosciences researchers in Texas who study ancient ...

A long-lost prehistoric bird species makes a triumphant comeback in its native land after being considered extinct.

In a promising discovery, authorities have spotted the critically endangered flat-headed cat in Thailand for the first time ...