The pit bull might be the most misunderstood dog thanks to the fact that they are loved by many of their owners, yet feared by many others. The Humane Society of the United States reports that up to 70 percent of dogs euthanized in animal shelters are pit bulls despite the fact that only 5 percent of the total dog population is comprised of pit bulls.

According to the ATTS Temperament Test, a standardized test that reports on a dog's temperament, the pit bull has an 86 percent passing rate, where 100 percent is the highest possible score. Though 86 percent is not the highest score for a dog, it also is far from the lowest score. However, only part of the fear of pit bulls comes from their temperament. People also fear their power.

When a pit bull attacks, it tends to bite deeply and shake violently back and forth, ripping the tissues of the person or animal it attacks. Some have compared pit bull attacks to shark attacks. Though some have said that pit bulls have locking jaws, a study completed by Dr. I. Lehr Brisbin of the University of Georgia proved that this is not the case.