The extinct mammals were about five times larger than a grizzly bear–and filled caves with their poop.

A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.

Most of us are familiar with sloths, the bear-like animals that hang from trees, live life in the slow lane, take a month to ...

An analysis of the sloth family tree suggests three different groups of the animals evolved to gigantic sizes in response to ...

Extinct Ape Gets a Facelift, 12 Million Years Later Oct. 16, 2023 — A new study has reconstructed the well-preserved but damaged skull of a great ape species that lived about 12 million years ago.

An illustration of a magnifying glass. An illustration of a magnifying glass.

The giant apes didn’t vanish quickly, but likely went extinct sometime between 215,000 and 295,000 years ago, the researchers found. While smaller apes may have been able to climb trees to ...

Extinct Giant Ape Walking in Prehistoric Forest. Image generated by AATG using DALL-E. The extinction of the giant ape, often symbolized by Gigantopithecus, the largest known ape to have ever roamed ...

In 1996, the International Union for Conservation of Nature listed giant sea bass as critically endangered. Since then, California has banned set gillnets within three nautical miles of the ...

“Using data from modern kangaroos, we predicted these giant extinct kangaroos would have much larger home ranges. "We were astounded to find that they didn’t move far at all, with ranges ...

A recent study using camera traps in two such forest reserves captured the first evidence of great apes — a gorilla and several chimpanzees — foraging in and navigating the mosaic of ...

In Central America however, they’re virtually extinct. In Mexico, it’s long been thought that they were, but dedicated wildlife monitors eventually proved otherwise. A 2011 photograph by a ...