Large prehistoric marine reptiles known as mosasaurs dominated the oceans until their extinction 66 million years ago.

New research confirms that Nanotyrannus was not a juvenile T. rex, but a predatory species native to the Late Cretaceous ...

Modern birds, including chickens, are the closest living relatives of dinosaurs, having evolved from a group of theropod dinosaurs. Fossil and molecular evidence, such as feathered dinosaur remains ...