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 ...

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

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 ...

Eisenberg, John F. and Maliniak, Eugene. 1985. "Maintenance and reproduction of the two-toed sloth Choloepus didactylus in captivity." In The Evolution and Ecology of Armadillows, Sloths, and ...

When you begin to think of the cutest animals in nature, a sloth may not immediately come to mind, but that’s probably because you’ve never seen a baby sloth. One look at the baby sloth in this ...