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 ...

Long before today’s tree-dwelling sloths, a 4-ton giant roamed South America — and it may have stood and fought like a bear.

Sloths have one of the slowest metabolisms in the animal kingdom – and it shows. In this episode, we explain how their incredibly slow movement allows algae to grow on their fur, creating a miniature ...