Roridgo is an orphaned sloth at the Jaguar Rescue Center in Costa Rica. He loves to cuddle with his teddy bear while he's sleeping. He's not the only one: all the sloths get teddy bears, the center ...

This is an archived article and the information in the article may be outdated.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. INDIANAPOLIS, Ind. – We all know someone who ...

Sloths appear to have life figured out, and once the details are revealed, being envious makes sense. These tree-dwelling ...

Wild sloths are considerably more active than their counterparts in captivity, reports the first electrophysiological study of sleep in a wild animal. Writing in the journal Biology Letters, Niels ...

If you're anything like me, getting a good night's rest feels more like a distant dream than a part of your daily routine. If you're reading this with groggy eyes and an exhausted brain, though, fear ...