The enduring mystery of T rex's arms How mammals won the dinosaurs' world P. tubicen had an enormous crest almost 1m (3.2ft) long protruding from the back of its head.

In "Jurassic Park," the T. rex roar is nothing short of thunderous. The result of mixing and editing together various animal vocalizations, sound designer Gary Rydstrom ultimately settled for a ...

“Playing” the 3D-printed head of a T. rex presents more of a challenge. Brow told WIRED that recreating the animal’s noggin would be tricky because “the skull and sinuses are so open ...

Dr. Clarke adds that T-Rexes did not typically open their mouths and roar like the movies depicted. “The Jurassic Park films have got it wrong,” said Dr. Clarke in another interview with BBC.

No one has formally analyzed the orbit morphology of T. rex for insights into when the dinosaur was most active. We do know, however, that T. rex had a large orbit shaped almost like a keyhole. If ...