The iconic roar of the Tyrannosaurus rex has been deeply embedded in popular culture for decades, often imagined as a ...

The deformed D-rex has only been glimpsed in trailers so far, but if the six-limbed mutant T-rex brings to mind the Rancor from Star Wars or the Xenomorphs from Alien, that’s by design.

Fossils of the T. rex, tyrant lizard and queen of the dinosaurs, are found exclusively in North America. Strangely, they have more in common with other large theropod dinosaurs in Asia than they ...