This video uncovers the story of a dinosaur so immense that each step sent vibrations through the ground. Scientists believe ...

Dinosaurs were not only the largest animals to roam the Earth -- they also had a greater number of larger species compared to all other back-boned animals -- scientists suggest in a new article.

The meat-eating dinosaurs known as theropods ranged in size from the bus-sized T. rex, to the dog-sized Velociraptor, to the birds we know today. The puzzle of how such wildly different dinosaur sizes ...

MARTINSVILLE, Va. – A two-day dinosaur extravaganza is returning to Martinsville this weekend. The Virginia Museum of Natural History is hosting its dinosaur festival on July 22 and 23 from 10 a.m. to ...

BEIJING — The remains of a giant, birdlike dinosaur as tall as the formidable tyrannosaur have been found in China, a surprising discovery that indicates a more complicated evolutionary process for ...

A species of dinosaur recently discovered in Argentina had an armored back, distinctive jaw and tiny arms — and was roughly the size of a dog. Fossils dated to the humid Late Cretaceous period — ...

It's a bird … It's a plane … It's a plane-size bird! If humans had lived 67 million years ago in what is now Texas, they would've had a hard time missing the giant flying pterosaur called ...

Broken shin bone of a carnivorous dinosaur, showing rings like the rings of a tree. These closely spaced rings were formed annually and indicate a slow-growing, long-lived animal. Credit: Michael D. D ...