Sleep is important for everyone, but some animals take it to a whole new level. While humans usually need around seven to ...

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

A new documentary explores how slowness can be a superpower, helping animals camouflage, evade predators, maintain a low ...

If you are searching for a heartfelt gift for animal lovers on Valentine's Day, the Saint Louis Zoo may be the place to go.

Sloths were not always slow, fragile animals hanging quietly in trees. Millions of years ago, some species reached massive ...

The world’s first-ever ‘slotharium’ is opening this year in Orlando, Florida, allowing visitors to get up close and personal with nature’s slowest critters. Ever wanted to see a sloth in its natural ...

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 ...