EXTINCTION

Thomas Jefferson thought mastodons might still be lurking somewhere out West—and he was determined to find them.

Its been just over 60 years since we discovered the species—and now there may be less than 20 of them left in the world.

The Bramble Cay melomys was a tiny rodent that lived on a tiny Australian island. The now-extinct animal was killed off by climate change, scientists say.

The dodo isn't the only tragic tale.

Ninety percent of frogs alive today descend from just three lineages that survived the extinction 66 million years ago.

The next time you’re feeling less than brave, remind yourself you’re already one of nature’s great success stories.

We adore them too. Really. But this is a major problem.

The rare ‘Alalā species is only the second known crow species to use tools.

A new exhibit at the American Museum of Natural History argues that birds are just another kind of dinosaur.

TX68 appeared to have a four in 1 billion chance of hitting Earth. That may sound like a long shot, but the odds were four times higher than the threshold NASA has set for potentially hazardous objects.

A study of what dodos' brains probably looked like suggests they were about as intelligent as pigeons—which are pretty smart.

Scanning a long-dead museum specimen revealed a pigment rarely found in ducks.