Hank is an extraordinary dog. His DNA shows he's 87.5% American Staffordshire Terrier. The American Staffordshire Terrier was recognized as a separate breed by the American Kennel Club in 1936. I paid a little extra to see if Hank may have inherited DNA that would predispose him to over 140 diseases found in dogs. In the report, it was really interesting to see in what breed the original mutation was found.