American Staffordshire Terriers descend from the bull-and-terrier dogs brought from Britain to the United States in the 1800s, and the American Kennel Club recognized the breed in 1936. They're stocky, muscular, medium-sized dogs, typically 40 to 70 pounds, with a broad head, pronounced cheeks and a short glossy coat in nearly any color.
Many AmStaffs are confident, people-loving and a little goofy with their families, and they often lean on or climb onto a favorite person. Their strength calls for leash training and early socialization, and some are selective or intolerant with other dogs even when well socialized, which matters on busy greenways. The short coat needs only occasional baths, though itchy skin is common. Every AmStaff differs, so judge the dog in front of you rather than the breed's reputation.