American Bulldogs descend from working bulldogs that came over with settlers and became all-purpose farm dogs in the South, catching cattle and hogs and guarding homesteads. The breed nearly vanished after World War II before being revived in two types: the leaner, more athletic Scott type and the heavier, shorter-muzzled Johnson type. Adults typically weigh 60 to 115 pounds.
Many are devoted, affectionate and confident, with a protective streak and plenty of stamina. In Peoria, that stamina meets desert heat, so the real challenge is exercising a muscular dog safely. The short coat sheds moderately all year. Early socialization and consistent, reward-based training matter, and dogs vary widely, so a dog's own personality counts for more than the breed label.