Wrong. Sloth bears have a nasty habit of going on an explosive attack if they’re startled and using their sharp claws to rake down the front of their victims, ripping off their faces and gouging out ...

From a family of polar bears resting peacefully to a rare tiger with a genetic condition, this year's collection features a ...

Some tropical land regions may warm more dramatically than previously predicted, as climate change progresses, according to a ...

About 50 members of a community outside Chile’s capital spent Saturday trying their best to power an entirely human-operated chatbot that could answer questions and make silly pictures on command, in ...

Sloths were not always slow, fragile animals hanging quietly in trees. Millions of years ago, some species reached massive sizes and filled roles closer to top-tier land builds. This analysis breaks ...

We asked our friends at the Virginia Museum of Natural History in Martinsville to spotlight something fascinating about Virginia's past. They tell us about a big creature ... with a big name attached.

The two cubs in their indoor den Smithsonian’s National Zoo and Conservation Biology Institute Two sloth bear cubs were born at the Smithsonian’s National Zoo and Conservation Biology Institute (NZCBI ...

Sally, a seven-year-old Linne's Two-Toed sloth, is easing into her new home after a near 250-mile journey up the A1 from her old abode. The animal arrived at Northumberland Zoo near Morpeth two weeks ...

In 1991, a skateboarder discovered 1.5-million-year-old giant ground sloth fossils in Wilmington, North Carolina. Scientists from the Smithsonian determined the fossils belonged to two different ...

This 2014 photo provided by the U.S. Centers for Disease Control and Prevention shows a female Culex quinquefasciatus mosquito on the skin of a human host. (James Gathany/CDC via AP) ...

CITES, the global wildlife trade regulation, has agreed to implement stricter rules for the trade in two sloth species increasingly targeted by the tourism industry. Thanks to its peaceful and ...