Sloths may be hosting entire ecosystems in their thick, dense fur, and algae growth on sloths can grow so great that it tinges their fur green.

Sloths, the famously slow-moving yet adorable creatures native to Central and South America, could face extinction by the end of the century due to climate change. Researchers investigating how ...

Climb into the jungle canopy with Tamara Ávila Atagua as she builds life-saving bridges for sloths.

Getting to know Coconut Coconut is a Linnaeus’s two-toed sloth, which has a body that consists of a short neck, four long limbs of equal length, coarse fur, curved claws that are typically 3 to ...

Tiny ridges in the hair help hold onto algae, so sloths will turn green and blend into the environment. Just how sleepy is a sloth? So sleepy that it’s what they do at least 18 hours a day.

Climb into the jungle canopy with Tamara Ávila Atagua as she builds life-saving bridges for sloths in Costa Rica. I love climbing trees. I just love to be in the tree, like, I could be up there ...