Thousands of years ago, ground sloths as massive as elephants roamed the Americas. Their history, marked by spectacular ...

New research shows 8,000-pound sloths once dug caves, adapted to oceans, and roamed widely—until climate and humans brought ...

But as the planet cooled again, sloths began to bulk up. The largest ground sloths emerged during the Ice Ages. Big bodies ...

According to a news release from TxDOT, an archeological survey in Lubbock unearthed the bones of prehistoric animals called “megafauna.” The survey was undertaken as part of the environmental review ...

Officials discovered the remains of a giant ground sloth and other prehistoric animals near Lubbock while working on a new highway. The Texas Department of Transportation contracted an ...

Over 10 times bigger than today’s sloths, many lived on the ground instead of in the trees and their closest living relatives are actually armadillos and anteaters. The largest of these ancient ...

Sloths hardly changed in size for 20 million years, and lived on the ground. Then, during a warming period around 16 million years ago, sloths adapted by evolving smaller physiques due to their ...

But for tens of millions of years, South America was home to a dizzying diversity of sloths. Many were ground-dwelling giants, with some behemoths approaching 5 tonnes in weight. That staggering ...

Ground sloths varied widely in size, from the truly massive Megatherium—which could rip foliage off the tops of trees with its prehensile tongue and acted as a sort of ecological stand in for ...

In contrast, small sloths in the trees managed to cling on to survival. Alberto Boscaini The skeleton of Megatherium americanum, an extinct species of giant ground sloth, in Museo Argentino de ...