Every so often, a discovery comes along that changes our understanding of the distant past. In the vast landscapes of the ...

Some of them, like the giant sloth or the woolly rhino ... anything else alive at the time. But its size offered plenty of protection, as these prehistoric animals outweighed possible predators ...

Based on the size of the cavity, Owen concluded the beast must have ... Scelidotherium leptocephalum is the scientific name for a species of extinct ground sloth, first described based on a partial ...

The findings also revealed that, contrary to what scientists previously thought, giant ground sloths went extinct during the end of the Late Pleistocene, some 12,000 years ago. At that time ...

They went extinct between 14,000 and 10,000 years ago, but the recently discovered tooth belonged to a sloth that lived 27,000 years ago, according to carbon dating. During that era, called the ...