A rare and surprising encounter unfolded at Pilibhit Tiger Reserve as a sloth bear was filmed fearlessly chasing a tigress. Wildlife enthusiasts were captivated by the unusual footage, which shows the ...

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

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 ...

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 ...

For the Smithsonian National Zoo and Conservation Biology Institute (NZCBI), Christmas came early in 2025. Zookeepers were delighted to welcome two new arrivals—sloth bear cubs, born in an off-exhibit ...