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 ...

At first glance, sloths look like an evolutionary mistake. They move slowly, eat almost nothing, and seem defenseless in one of the most dangerous ecosystems on Earth. But every part of their biology ...

An international team of researchers, with the involvement of the UAB, has conducted a study that explains the evolutionary ...

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

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

The Smithsonian's National Zoo in Washington, D.C., has welcomed two sloth bear cubs, marking the first time the zoo has had ...

Small in size, big in bite. From unusual eating habits to strange behaviours, we explore what makes the world’s smallest ...

Possible factors in the extinction of many large animals include include hunting and climate stability since the last ice age ...

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

Two sloth bear cubs were born at the Smithsonian’s National Zoo and Conservation Biology Institute (NZCBI) on December ...

A pair of sloth bear cubs were born at Smithsonian's National Zoo last month, on Dec. 7, the zoo shared in a press release.