American Staffordshire Terriers descend from bull-and-terrier dogs brought over from Britain in the 1800s, and the American Kennel Club recognized the breed in 1936. They're stocky, muscular dogs, usually 40 to 70 pounds and 17 to 19 inches tall, with a broad head and a short, glossy coat in nearly any color.
Many AmStaffs are confident, people-loving and a little goofy with their families. Their strength means leash manners and training matter, and some dogs are selective with other dogs no matter how well they were raised. In Fremont, that translates to practicing on busy sidewalks and introducing new dogs slowly. Each AmStaff is different, though, and some are shy or mellow rather than bouncy.