We have a pretty good idea of how it killed its prey. It seems to have just walked right up to them, taken a bite, and whatever happens happens.
Unlike many dinosaurs, they wouldn’t just take the flesh of the carcass. They basically eat most of the carcass.
T-Rex’s huge legs and pelvis make up half its total body weight. Its tail weighs almost a ton. This is because it has to balance out nearly half a ton of head and jaws. Their head is two thirds muscle, which power jaws capable of enough force to bite through a steel oil drum.
All that muscle delivers a bite strong enough to defeat the toughest prey of the Cretaceous.
T-Rex’s teeth are among the bluntest teeth, bluntest, least sharp of the whole family of Tyrannosaurs. Those teeth are designed to crush, to penetrate thick layers of armor, and muscle, in a crushing, massive hemorrhaging blow.
The muscles in T-Rex’s neck are nearly as powerful as the muscles of its legs. At half a meter thick, they’re strong enough to lift a hippo or bring down the most well-armed, best-defended herbivore nature has ever produced, Triceratops.
The best way to attack Triceratops is with a long-barreled, 75 millimeter antitank gun.