They’re slow, they’re sleepy, and they’ve taken over the internet—but sloths are more than just cute animals hanging from ...

Sloths make modern life look exhausting. While the rest of the world rushes around, these tree-dwellers adhere to a simple routine that has been effective for millions of years. Behind their sleepy ...

The charismatic and slow three-toed sloth is just one of many animals species that Smithsonian scientists study, from within our vast collections to live animals at our research centers and National ...