Imagine T. Rex. Now Imagine It With Lips.

Imagine T. Rex. Now Imagine It With Lips.

Brimming with serrated teeth bigger than bananas, Tyrannosaurus rex’s fanged maw is iconic. Many depictions of the prehistoric predator show its teeth sticking out even when its mouth is closed, like a snaggletoothed crocodile. However, some paleontologists think T. rexes need some…