At first glance, this mammal looks like a horse gone terribly wrong. But, in reality, Chalicotherium is far from a botched ...

For the Smithsonian National Zoo and Conservation Biology Institute (NZCBI), Christmas came early in 2025. Zookeepers were ...

Sloths, the world's slowest mammals, have evolved over 64 million years into a species that thrives throughout Central America and northern South America, but climate change and human sprawl could be ...

The Smithsonian’s National Zoo and Conservation Biology Institute (NZCBI) announced Jan. 6 that two sloth bear cubs were born ...

One Dec. 21, Lorenzo was found “poorly responsive” and was taken to the zoo’s L3 Harris Animal Care Center for an examination. It was found he had a declining body condition along with dehydration and ...

Sloths have been depicted as the slowest-moving mammals in the world, and have been stuck with that reputation. However, sloths are amazing animals. They may seem innocent and defenseless, but sloths ...

Georgia's Zoo Atlanta is celebrating the birth of a Hoffmann's two-toed sloth earlier this month. The sloth infant, which has not yet been publicly named, was born Aug. 9 to its mother, Nutella, 7, ...

Here’s your excuse to sloooooowwww dowwwnnnn this Friday: It’s International Sloth Day. To celebrate the holiday, we compiled 9 things to know about the sluggish tree-dwellers, according to the World ...