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 ...

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