A newfound carnivore whose name means "the evil spirit reptile with outstanding teeth" suggests the dinosaur lineage that included the mighty T. rex experimented with its skull shape more than thought ...

Overall, the muscle mass in T. rex 's tail has likely been underestimated by as much as 45 percent up until now. Gotta run! As for how T. rex 's tail muscles got so giant, Persons said the development ...

Dinosaurs ‒ the word conjures up images of an ancient species like the plant-eating Diplodocus, or the terrifying Tyrannosaurus rex (T rex), or even the agile and cunning Velociraptor. These beasts ...

As for how T. rex's tail muscles got so giant, Persons said the development had to do with the tail's structure. The tails of both T. rex and modern reptiles are equipped with rib bones that are ...