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, ...

WEST PALM BEACH, Fla. -- Golden lion tamarins and Hoffman's two-toed sloths have become unlikely roommates in a brand new ...

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 ...

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 ...

Though the Shasta ground sloth went extinct approximately 12,000 years ago, we know their diet included Joshua trees because preserved sloth dung found in caves contained seeds, leaves and fruits of ...

Giant sloths with razor-sharp claws and as large as Asian bull elephants once roamed the Earth, snacking on leaves at the tops of trees with a prehensile tongue. Now, scientists have figured out why ...

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 ...

In the tree, going clockwise from left: extinct West Indian sloth (Acratocnus), extant three-toed sloth or ai (Bradypus), and extant two-toed sloth or unau (Choloepus). From left to right on the ...

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, ...