Add Yahoo as a preferred source to see more of our stories on Google. © Smithsonian’s National Zoo and Conservation Biology Institute The post A Win for the ...

Two sloth bear cubs were born at the Smithsonian National Zoo on December 7, 2025. It is the first time in 12 years that sloth bear babies are present at the zoo. The birth is part of the Association ...

Long before today’s tree-dwelling sloths, a 4-ton giant roamed South America — and it may have stood and fought like a bear.

Defecating exposes sloths to predators on the jungle floor. An unexpected ally benefits, and returns the favor. A brown-throated three-toed sloth peers over a tree's buttress root while defecating on ...