Modern sloths may be dedicated vegetarians, but at least one of their massive Ice Age cousins chowed down on meat when it had the chance. Darwin’s ground sloth — which could grow to over 3 meters long ...

Among the greatest mysteries of the tropical rainforest are the pooping habits of sloths. Really. Those furry, slow-moving tree dwellers almost never descend from the safety of the tree tops—except ...

The Smithsonian's National Zoo is home to three Linnaeus's two-toed sloths and shares some sloth basics, but here are three lesser-known sloth facts. 1. The Smithsonian has a collection of fossilized ...

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For years scientists assumed that sloths don't fart — believing the methane produced by their slow digestive system was simply absorbed into their bloodstreams and breathed out through their mouths.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Modern sloths hang ...

Sloths are known for their slow and sleepy nature. These cute mammals, which spend most of their time upside down, can be found in the trees of South America and Central America. These mellow-looking ...