And yet, somehow, sloths have been hanging on in one form or another for 64 million years. To understand this quirky animal, 60 Minutes hung out with a quirky zoologist. Lucy Cooke has been ...

The sloth family tree once sported a dizzying array of branches, body sizes and lifestyles, from small and limber tree climbers to lumbering bear-sized landlubbers. Why sloth body size was once so ...

The survival of sloths is under threat due to climate change, according to a new study. The famously slow-moving — and adorable — creatures of Central and South America could die out if ...

Sloths, the famously slow-moving yet adorable creatures native to Central and South America, could face extinction by the end of the century due to climate change.

Scientists have figured out how extinct giant ground sloths got so big and where it all went wrong by Jerald Pinson, Florida Museum of Natural History ...

Led by Rebecca Cliffe, a zoologist and founder of The Sloth Conservation Foundation, experts focused their most recent investigation on two-fingered sloths (Choloepus hoffmanni), which live in ...

An analysis of the sloth family tree suggests three different groups of the animals evolved to gigantic sizes in response to cold and dry conditions ...

Defecating exposes sloths to predators on the jungle floor. An unexpected ally benefits, and returns the favor.

The Jacksonville Zoo's newly arrived sloths will not be breeding -- they're both girls -- but their slow pace and cuteness are expected to enchant.

What Is Sloth Fever? Here's What to Know About the Potentially Deadly Virus Spreading to the United States The CDC is sending out a warning about the Oropouche virus — also known as “sloth ...