Long before today’s tree-dwelling sloths, a 4-ton giant roamed South America — and it may have stood and fought like a bear.

Add Yahoo as a preferred source to see more of our stories on Google. Harlan's ground sloth fossil skeleton excavated and displayed at the La Brea Tar Pits in Los Angeles. Larisa DeSantis A two-toed ...

Many thousands of years ago, the Sarasota-Manatee area was home to a diverse mix of now-extinct mammals—most notably, saber-tooth cats, mastodons and giant ground sloths called Megatherium, which ...

A Manatee County utilities crew was digging a trench recently when it unearthed something unexpected: a fossilized giant ground sloth claw that had been buried in more than 11,000 years ago. According ...

Ancient sloths lived in trees, on mountains, in deserts, boreal forests and open savannahs. These differences in habitat are primarily what drove the wide difference in size between sloth species.

In a rare and exciting find, road crews in Lubbock, Texas, stumbled upon a prehistoric creature fossil while working on the ...

Most people are familiar with modern sloths — slow-moving, tree-dwelling mammals that digest food slowly and descend only occasionally. Their closest living relatives are anteaters and armadillos, a ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Imagine a sloth. You probably picture a medium-size, tree-dwelling creature hanging ...