The extinction of the Pleistocene megafauna may be people’s fault after all, according to a recent study.

In a discovery that challenges long-standing views of prehistoric life, scientists have uncovered vast underground tunnels ...

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.

Sloths may seem like quirky tree-dwellers today, but their past reveals a dynasty of giants that once roamed the Americas.

What did early humans like to eat? The answer, according to a team of archaeologists in Argentina, is extinct megafauna, such ...

At the end of the Pleistocene Epoch, 2.6 million to 11,700 years ago, a ground sloth that stood 8 to 10 feet tall went extinct. Now, bones belonging to one have been found in Kansas. A partial skull ...

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. But ...

Massive Megatherium sloths once stood as large as Asian elephants, ripping foliage off treetops with prehensile tongues like today's giraffes. "They looked like grizzly bears but five times larger," ...

Sloth in prison -- The Great Basin now and then -- A zoologically impoverished world -- Dating an ass -- A stable of ground sloths -- Extinct mammals, dangerous plants, and the early peoples of the ...

The Palm Beach Zoo in West Palm Beach, home to towering trees, tigers and lemurs, has unveiled a new specially designed habitat for two sloths and three endangered squirrel-sized monkeys called golden ...

Bones from an extinct ground sloth that stood between 8 and 10 feet tall were found in Kansas. Photo from the Illinois State Museum. At the end of the Pleistocene Epoch, 2.6 million to 11,700 years ...