Selective breeding of French Bulldog, English Staffordshire Bull Terrier, Jack Russell, Boston, our own Ultimate Bulldog, and English Bulldog created a friendly, healthy, sturdy bull and terrier breed. The ears are all natural. They adore humans, are biddable with other dogs, and have moderate energy. Their prey drive is much lower than most terriers. Working lines can still be efficient ratters. Small 11 - 14", 20" - 25 lbs, #ultimate #fictional #breed #bull #bulldog #terrier #small #dog