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 ...

The extinction of the Pleistocene megafauna may be people’s fault after all, according to a recent study. A team of archaeologists recently examined animal bones at sites dating to the waning years of ...

Researchers studying a trail of fossilized footprints on a remote New Mexico salt flat have determined the tracks tell the story of a group of Ice Age hunters stalking a giant sloth. Park naturalist ...

Although it sounds like a grade-B science fiction movie, fossils show that our ancestors once hunted and fought giant ground sloths. For the first time, scientists have uncovered fossilized footprints ...

The Northern and Southern Maned Sloths may look very similar from the outside, but their genomes reveal different stories: the two species have faced very distinct conditions in Brazil’s Atlantic ...

(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 ...