American Bulldogs descend from working bulldogs that came to the colonial South, where they caught loose cattle and feral hogs and guarded farmsteads. The breed nearly vanished after World War II before John D. Johnson and Alan Scott revived it, leaving two broad types: the heavier, shorter-muzzled Johnson or bully type and the leaner, more athletic Scott or standard type. Many dogs today blend both. Adults weigh about 60 to 115 pounds, are mostly white, and shed moderately year-round.
That farm background still shows. Many are devoted, affectionate and confident, with a protective streak and plenty of stamina. Early socialization, consistent reward-based training and secure handling matter from the start. Dogs vary, and many dogs labeled American Bulldog are mixes, so judge the dog in front of you rather than the label.