American Bulldogs are descendants of Old English Bulldog. This dog was brought to USA by European immigrants. They used Old English Bulldog on farms as working dog, but they did not care about purity of the breed and bred them with dogs with the best working qualities for all-around farm work. That is how American Bulldog was developed.
These dogs look tough. They are taller, heavier and faster, than their more popular English cousin. American Bulldogs are very muscular and sturdy, but dont be fooled by that, they are also super fast. Their coat is short and since there are multiple types of American Bulldogs in modern times, and though they used to be mostly white, they now come in a variety of patterns and colors. They have powerful necks, broad chests and long, muscular legs.
Watch our video about this amazing breed: