This gigantic dinosaur (which is saying something) feared nothing and according to the archeologist who pulled him from the earth ". . . the big herbivores don't get their due for being intimidating." Which is probably true, and is precisely why he gave it the name he did Dreadnoughtus Schrani (schrani is the name of the fellow who funded the expedition).
And this fellow was big . . . the dino not the archeologist . . . weighing in at 65 tons and is 85 feet long.
Indeed, the earth groaned when he walked.