With its 6-in.-long razor-sharp teeth, Tyrannosaurus rex certainly had the look of a fearsome hunter. But looks aren't everything. For decades paleontologists have chewed over the suggestion that T. rex's eyes were too small, its arms too short and its legs too slow for effective hunting. A few experts have gone so far as to say that despite the monster's huge jaws, its teeth were fragile and its jaw muscles were not strong enough to capture and kill other animals. Maybe the king of the dinosaurs was just a lowly scavenger.
Or maybe not. An experiment described in the current Nature...