Sloths showed surprising speed to escape from zookeepers who were trying to catch them for health checkups. The slow-moving ...

On Rossel Island, Kraus found Dendrelaphis melanarkys, or the black net tree snake. This 4-foot, 11-inch reptile is easier to ...

They’re slow, they’re sleepy, and they’ve taken over the internet—but sloths are more than just cute animals hanging from ...

Michael Kleber-Diggs is a poet, essayist, literary critic, and arts educator. He is the author of the poetry collection ...

Imagine a world where forests echoed with the slow, thunderous steps of creatures as large as small cars. Millions of years ...

In a rare moment, a two-toed sloth gave birth in front of visitors at a zoo in Minnesota. Sago, a Hoffman two-toed sloth, ...

Climb into the jungle canopy with Tamara Ávila Atagua as she builds life-saving bridges for sloths in Costa Rica.

Stone Zoo in Stoneham welcomes a Linne’s two-toed sloth pup, born to Lunesta and Nero. The baby, their eighth, is thriving ...

An award-winning zoologist, her spirited right-hand woman, and their sloth-sniffing rescue dog team up in Costa Rica’s lush jungles for the first-ever ...

Costa Rica’s highways are packed with animal lovers searching for a glimpse of a sloth or red-eyed tree frog. Too many of the ...

Costa Rica has enlightened wildlife protection laws guided by the motto "when in doubt, favor nature." But the sheer number of tourists seeking wildlife encounters can stress or harm the animals ...

This necessitates their low metabolism and slow pace. Despite their reputed sluggishness, pygmy sloths are accomplished swimmers, moving more quickly through water than they do on land or in the trees ...