Talk:Tyrannosaurus/@comment-25229481-20140726210159/@comment-6030742-20140728082258

T-rex is a short name for tyrannosaurus rex. The "rex" part is the second name of the species. Many other dinosaurs and everything living described by biology has them (Like Spinosaurus Aegyptycaus and Parasaurolophus Walkeri) but the excat same "rex" part is easily pronounced and rememberable. As to why it's so famous, well it gets a lot of media attention. And we're talking about land animals here... Also liopleurodon was nowhere near 25m. That's a ridiculous claim made by the documentary "Walking With Dinosaurs". Liopleurodon was, in real life, about 7 metres on average. And there are a lot of interesting creatures, yes, but the tyrannosauroid family is interesting aswell.