Long before whales dominated the oceans, Earth’s seas were home to a fish so massive it continues to challenge our ...

When scientists finally measured the most powerful bite ever recorded, the winner wasn’t T. rex. It was something far older, ...

Bite force, a measure of the strength of an animal's bite, helps researchers understand a species' role in the ecosystem.

Not every extinct animal vanished in plain sight. Some disappeared into remote regions humans barely study. This list ranks five species by how realistic their survival might be. Factors include ...

The fossilized backbones of what appeared to be woolly mammoths have turned out to come from an entirely different and ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Brachiosaurus was among the largest animals ever to walk on land, towering above entire prehistoric landscapes. Its unusual ...

Crocodiles and alligators are usually the apex predators in whatever environment they live in. Their massive jaws and armored ...

Discover the monster snake that makes all modern snakes seem small by comparison. Learn about Titanoboa, the biggest snake to roam the Earth!

We rely on smell more than most people may realize. Across mammals, scent guides feeding, warns of danger, and shapes social ...

Apart from fossils, some animal species also testify to how big their predecessors were before evolution. Although many of ...

The clawed creature — named for its elongated forehead and flat skulls — was even labeled “possibly extinct” within Thailand, ...