Prehistoric animals once roamed — and ruled — planet Earth. Some of them, like the giant sloth or the woolly rhino, were generally gentle. Others, like the saber-toothed tiger and the dire wolves, ...

With the current technology, you have a good shot at being able to bring back an extinct animal or being able to create mor ...

Millions of years ago, the planet was home to terrifying predators that make many of today's dangerous animals look harmless.

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 ...

Earth once hosted more than 10,000 species of these ancient marine predators. Find out how they lived, when they vanished, ...

Add Yahoo as a preferred source to see more of our stories on Google. Using 3D imaging, a study revealed evidence of prehistoric fauna from the collection of Oregon's John Day Fossil Beds National ...

Millions of years ago, a large herbivore walked through an ancient valley and snacked on vegetation. The land would later become the Iberian Peninsula, and the valley the creature stood would be ...

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 ...

Prehistoric sea monsters weren't always quite so fierce as their reputation suggests, as scientists find that the queasy giants had to swim ashore to vomit.

Koalas with the bodies of lions. Elephants the size of your dog. Gigantic, 8-foot-tall sloths. These aren’t creatures found in science fiction: They walked our planet a million years ago, during the ...