Working bulldogs brought to colonial America became all-purpose farm dogs in the South, catching loose cattle and feral hogs and guarding homesteads. After the type nearly disappeared following World War II, John D. Johnson and later Alan Scott revived it, producing the heavier, shorter-muzzled Johnson or bully type and the leaner, more athletic Scott or standard type. Today's American Bulldog is a powerful, mostly white dog of about 60 to 115 pounds, recognized by the United Kennel Club but not yet fully by the AKC.
Many American Bulldogs are devoted, affectionate family dogs with a confident, protective streak and plenty of stamina. Their strength means early socialization, consistent reward-based training and secure handling matter from day one. Adopters should also check local rules and housing policies, since some landlords and insurers restrict bully breeds.