While humans wouldn’t be very happy to find that organisms were growing on their skin, particularly fungi, algae, and insects, it works out pretty well for sloths. Sloths may be hosting entire ...

It’s not easy to find a sloth in the middle of the forest. They spend most of their time in the tree canopy and are masters of camouflage, thanks to their slow movements and the algae attached to ...

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.