Every October 20, the world slows down (at least in spirit) for International Sloth Day. It’s the perfect excuse to celebrate ...

LA FORTUNA, Costa Rica -- A child zooming down a zipline through a rainforest in Costa Rica collided with a slow-moving sloth clinging to the cable. It happened Sunday at the Go Adventure Arenal Park ...

A sloth in its natural habitat in Costa Rica, where sloth populations have decreased in the past decade, according to Rebecca Cliffe, lead author of the research. Bernd Dittrich via Unsplash In the ...

Imagine a sloth. You probably picture a medium-sized, tree-dwelling creature hanging from a branch. Today's sloths—commonly ...

Sloths weren’t always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons (3.6 metric tons) — and when startled, they brandished immense claws. For a long time, ...

The Smithsonian's National Zoo is home to three Linnaeus's two-toed sloths and shares some sloth basics, but here are three lesser-known sloth facts. 1. The Smithsonian has a collection of fossilized ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Central and South America’s sloth populations may face a dire ...

Gaylene Thomas, a wildlife care manager at the San Diego Zoo, oversees two teams that care for a variety of species, ...