The American Bulldog descends from working bulldogs that settlers brought to the colonies, where they caught cattle and hogs and guarded farms in the South. The breed nearly vanished after World War II before it was revived, leaving two types: the leaner, more athletic Scott type and the heavier, shorter-muzzled Johnson type. Many dogs today blend both, and plenty of shelter dogs labeled American Bulldog are mixes.
Adults weigh roughly 60 to 115 pounds, with a short, mostly white coat that sheds moderately year-round. Most are loyal, confident and affectionate with their people, and watchful with strangers. In Dayton, that means daily trail time, early socialization and reward-based training, plus a household ready for the cold months and for landlords or insurers who may restrict bully breeds.