A sloth scientist, her tree-climbing BFF, and their dog work to save Costa Rica’s sloth populations in groundbreaking ways, all while capturing rarely seen wild sloth behaviors and reimagining what it ...

Pleistocene ground sloths constitute a remarkable and diverse group of xenarthran mammals that thrived across South America during a period of significant climatic and environmental flux. Their fossil ...

Brand new to science: a sloth drinking water—captured cinematically for the first time. Until recently, it was assumed that sloths didn't need to drink water, and that they got water from the food ...

Fans of the movie franchise Zootopia know that sloths make the perfect DMV (Department of Mammal Vehicles) workers.

A Manatee County utilities crew was digging a trench recently when it unearthed something unexpected: a fossilized giant ground sloth claw that had been buried in more than 11,000 years ago. According ...

A sloth perches languidly on a branch in one of Costa Rica’s vast forest preserves. (Gabriella Chavez/WUFT News) LA FORTUNA, COSTA RICA — Near a lively stretch of Highway 142, one of Costa Rica’s ...

When you begin to think of the cutest animals in nature, a sloth may not immediately come to mind, but that’s probably because you’ve never seen a baby sloth. One look at the baby sloth in this ...

Three-toed sloths descend from the canopy about once a week to defecate, risking predation during one of the most dangerous moments of their lives. A single sloth bowel movement can account for up to ...