The heyday of dinosaurs, the Jurassic era saw Earth’s climate change from hot and dry to humid and subtropical. The Jurassic ...

Named the “king of the tyrant lizards,” T. rex was built to rule. Find out how these dinosaurs lived, what made them so vicious, and what we’re still learning about them today.

The new fossil was unearthed in a remote part of Argentinian Patagonia—and had teeth comparable to a T. rex, says National ...

This dinosaur’s skull was light as air but its mouth was packed with power—and a unique ability to quickly grow teeth. Here’s how Nigersaurus was built for nonstop grazing.

The start of the Triassic period (and the Mesozoic era) was a desolate time in Earth's history. Something—a bout of violent ...

Tyrannosaurus Rex Tyrannosaurus rex arose during the Cretaceous period about 85 million years ago, and thrived as a top land predator until the dinosaurs went extinct 20 million y ...

The new Argentine dino might give us clues to what the world was like before the asteroid wiped out their kind. Hundreds of fossils found at a quarry in Northern Patagonia provide a snapshot of ...

A team of paleontologists led by National Geographic Explorer Paul Sereno uncovered a trove of dinosaur fossils in the Sahara desert in Niger, including this long-necked herbivore called a ...