During their reign of dominance on Earth for more than 160 million years, dinosaurs evolved into many diverse species. Although some species were vegetarian and harmless, others were fierce carnivores ...

Dragonflies the size of hawks once stalked Earth’s skies. Scientists thought they knew why they’d gone away – but a decades old theory may have just been disproven ...

Tyrannosaurus rex possessed a preposterously massive skull - 5 feet long (1.5 meters) and built to enable bone-crunching bite ...

Pinning down the most titanic of the large sauropod dinosaurs is not an easy task, since the odds were generally against the ...

Tyrannosaurus rex was a huge land predator during the twilight of the age of dinosaurs. But it was not the only T. rex that ...

There’s a spot along the southern Oregon coast where a Tyrannosaurus rex casually hangs out in a temperate rainforest, and ...

According to a new study, the Tyrannosaurus rex’s small arms — which measured around 3 feet long — naturally evolved to ...

Long before humans existed, Earth was home to animals so massive that modern wildlife seems impossibly small by comparison. Giant sauropod dinosaurs evolved into living giants capable of crushing the ...

Ever wonder what it feels like to be at the bottom of the food chain? The Branson Dinosaur Museum in Branson, Missouri offers that humbling experience without the actual risk of becoming a snack. Step ...

Some scientists have suggested a different idea: T. rex’s arms may have evolved to be smaller as another body part grew ...

But in a new book he looks beyond dinosaurs to think about bones more expansively. He explores the evolutionary origins of bones, and the way they gave vertebrates the ability to diversify on land and ...

Long before humans existed, giant marine predators ruled the warm prehistoric seas that once covered much of North America.