The American Staffordshire Terrier is closely related to the American Pit Bull Terrier (APBT), but over the years the two breeds have gone their separate ways. The Am Staff is registered by the American Kennel Club (AKC) — the APBT is currently not — and tends to be slightly larger than the APBT, but the two breeds share a similar personality and activity level. The Am Staff has a formidable reputation and appearance, but he is meant to be a dog who loves and accepts people. In the hands of loving owners and given the right amount of socialization, training, attention and love, he can be a docile, affectionate family dog. This is a strong, muscular dog. He can be a challenge to walk on leash if not well trained. Pulling can become an issue. If so, it might be a good idea to channel that desire into a dog sport such as weight pulling or nose work (vetstreet.com).