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

Ancient sloths lived in trees, on mountains, in deserts, boreal forests and open savannahs. These differences in habitat are primarily what drove the wide difference in size between sloth species.

Ancient sloths lived in trees, on mountains, in deserts, in boreal forests and on open savannas. Some grew as large as elephants. Illustration by Diego Barletta The largest sloth of all time was the ...

Two female sloths named Chata and Baby Ruth have, slowly, taken up residence at the Jacksonville Zoo and Gardens. Chata is a 29-year-old Hoffman’s two-toed sloth, while Baby Ruth is a 6-year-old ...