When your doctor orders three mammograms and two sonograms, and then waits one nano-beat too long before saying “biopsy,” go see a sloth. Earlier this month, that’s what I did, at the National ...

Georgia's Zoo Atlanta is celebrating the birth of a Hoffmann's two-toed sloth earlier this month. The sloth infant, which has not yet been publicly named, was born Aug. 9 to its mother, Nutella, 7, ...

A vulnerable sloth is seen facing off against a large dog in an image that highlights a heartbreaking conservation issue. American photographer Suzi Eszterhas entered it into the 58th Wildlife ...

Conservationists were doing field work in Costa Rica when they heard a “faint cry” coming from the trees. Then they found a three-fingered newborn sloth crying after it had been separated from its ...

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 ...