American Bulldogs descend from working bulldogs that settlers brought to colonial America. On Southern farms they caught loose cattle and feral hogs and guarded homesteads, and the type nearly disappeared after World War II before enthusiasts revived it. Two looks came out of that revival: the leaner, more athletic Scott or standard type and the heavier, shorter-muzzled Johnson or bully type. Adults run roughly 60 to 115 pounds, and many dogs labeled American Bulldog are mixes.
In Sioux Falls, that history translates into a strong, confident dog that needs a secure yard, a sturdy leash and steady, reward-based training. The short white coat sheds moderately all year and needs only regular brushing, but it offers little insulation. Plan on a dog that lives indoors with the family.