Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. Rachael has a degree in Zoology from the ...

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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. New research suggests humans lived in South ...

The scientific wonderers at What If imagine an alternate world where giant sloths never went extinct and still roam across modern environments today.

(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 ...