Fact or Fiction: pit bulls have locking jaws. Fiction! They do however have strong jaw strength, thanks in part to the temporalis muscle that takes up most of the dog’s head. . . . . . . . #showusyourpits #pitbulls #pitbullsandparolees #animalplanet #pitbull #pitbullterrier #amstaff #photooftheday #pictureoftheday