T. rex’s secret weapon? A stout snout

MSNBC ^ | 5/20/07 | unknown

[Renfield]

A paleo-bully of sorts, Tyrannosaurus rex could chomp down on prey with the force needed to lift a semitrailer, tearing apart a victim's bones. Now researchers have discovered the dino's secret weapon: It was hard-headed.

"Fused, archlike nasal bones are a unique feature of tyrannosaurids," said lead scientist Eric Snively of the University of Alberta. "This adaptation, for instance, was keeping the T. rexes from breaking their own skull while breaking the bones of their prey."

[Nachoman]

But they had little arms.