The stubby arms of Tyrannosaurus rex obviously weren't designed for hand-to-hand combat.

An asteroid impact may have ended the reign of the dinosaurs here on Earth about 65 million years ago, but new evidence suggests many of the large, plant-eating dinosaurs were already dying out during the last 12 million years of the Cretaceous period.

For 300 million years, they were the ultimate survivors.

New research from the American Museum of Natural History shows that America’s Great Plains region may have once been home to some typically sea-bound creatures.

The dinosaurs of the Cretaceous may have faced an unexpected hazard: fire!