Artwork: T. rex was a formidable predator during the Cretaceous Period As a big, active predator, the mighty Tyrannosaurus rex needed a way to cool down. Now, scientists say that two large holes ...
"The nickname has come to be Thanatos." Teeny T. rex relative discovered in US Tyrannosaurus rex had 'air-con' in its head Small tyrannosaur 'was cousin of T. rex' Fragments of Thanatos's ...