Since the first sharks emerged in the world’s oceans nearly half a billion years ago, the world has gone through five major ...

Earth Nearly all mammals will go extinct in 250 million years as Earth warms If humans still exist millions of years from now, they will face inhospitably warm conditions on a supercontinent ...

All of the early mammal fossils examined indicated the extinct animals had unpatterned, dark-brown coats. Product news, reviews, and must-have deals.

Global population trends among 71,000 animal species show nearly half are "sliding toward extinction," some of them at alarming rates, a new study warns. Researchers found 48% of the species in ...

"But if humans cause larger temperature increases, we could lose more than a third or even half of all animal and plant species, based on our results." The study was published this week in the ...

Cuddly koala bears are adored by people all over the world, even by those who have never seen one in real life. But these ...

The devastation in its wake wiped out all of the non-avian dinosaurs and many mammals, such as a rodent-looking animal named Vintana sertichi that weighed up to 20 pounds and lived on Madagascar.

Early mammals were small, strictly nocturnal, and altogether less showy–verging on downright drab, as supported by a study published March 13 in the journal Science.