As large adult males can grow up to 15 feet long and weigh over 1,000 pounds, while even the largest female bull shark is only around 13 feet long and weighs about 750 pounds. In addition, alligators have much more powerful jaws than bull sharks: their bite is estimated to be up to 2,500 pounds per square inch (PSI), while the bite of a bull shark is about 1,250 PSI.
Bull American alligator vs full grown bull shark who would win?
The American alligator wins.