#4 Pit Bulls bite harder than any other breed.
Many people believe that a Pit Bull has fiercely strong pounds per square inch of bite pressure, up to 10,000 PSI, meaning that Pit Bull could bite harder than any other breed. National Geographic completed a control study of animal bites using several different species. Crocodiles made the top of the list, with a 2,500 PSI, while dogs made the bottom of the list, with an average 320 PSI. The study used three large breeds of dogs, a German Sheppard, a Rottweiler and a Pit Bull. The Pit Bull was found to have the least bite pressure of the three, according to the American Humane Association.