A new record may have just been set for the fastest-moving sloth in the world. And not just any sloth: a three-toed sloth named "Sasha" that served as the "zero-g indicator" for SpaceX's Crew-7.

Defecating exposes sloths to predators on the jungle floor. An unexpected ally benefits, and returns the favor. A brown-throated three-toed sloth peers over a tree's buttress root while defecating ...

Washington, DC —The US Fish and Wildlife Service (USFWS) has proposed listing the pygmy three-toed sloth under the Endangered Species Act in response to a 2013 emergency petition filed by the Animal ...