The Trump administration's proposal to change the definition of the word “harm” in the Endangered Species Act could bring ...

Scientists in Brazil found a very old ant fossil. This fossil is 113 million years old. It is of a 'hell ant,' a type of ...

Large kangaroos today roam long distances across the outback, often surviving droughts by moving in mobs to find new food ...

Ancient giant crocodiles that rivaled dinosaurs once thrived in North America. A new study led by Hungarian researchers ...

Deinosuchus had a wide snout like an alligator’s. But unlike alligators, it thrived in salty waters. It lived between 82 and ...

Deinosuchus, a massive crocodilian with a school bus-sized body and banana-sized teeth, roamed North America millions of ...

A new study indicates the giant reptile Deinosuchus is not a close relative of modern alligators, as scientists previously ...

This fossil is 13 million years older than any ant fossil found before—and reveals a sophisticated predator that lived alongside the dinosaurs.

The fossil’s discovery in Brazil shows that ants have been around for longer than once thought. This insect impaled its prey with scythe-like jaws, scientists say.

The dire wolf is back — at least according to the company that made headlines earlier this month for the world’s first ...

Australia’s giant Protemnodon kangaroos didn’t die out everywhere at the same time. Instead, extinction proceeded one habitat ...

It’s wonderful to imagine kangaroos almost four times the size of big reds hopping around ancient Australia, but this lot ...