Sloths may seem like quirky tree-dwellers today, but their past reveals a dynasty of giants that once roamed the Americas.

1. There are two groups of sloths in the world: Those with two claws on their front limbs and those with three claws on all four of their limbs. In total, six sloth species are found in the Americas, ...

This story was originally published on MyNorthwest.com. The Washington State Department of Transportation (WSDOT) has removed a second giant stuffed sloth from a tree over Interstate 5 (I-5) near ...

Sloths aren’t just adorable, they’re actually pretty impressive, believe it or not. Some of the world’s biggest creatures ...

Just over a year after this sloth was found on the side of the road, it's learning to climb with great speed and agility. The adorable sloth was just a few months old when it was rescued, but has ...

Look closely up in the trees of a shade-grown cacao plantation in eastern Costa Rica, and you’ll see an array of small furry faces peering back at you. Those are three-toed sloths that make their ...

ORLANDO, Fla. — Here’s your excuse to sloooooowwww dowwwnnnn this Friday: It’s International Sloth Day. To celebrate the holiday, we compiled 9 things to know about the sluggish tree-dwellers, ...

Most people are familiar with modern sloths — slow-moving, tree-dwelling mammals that digest food slowly and descend only occasionally. Their closest living relatives are anteaters and armadillos, a ...

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 ...