The Bull Terrier or English Bull Terrier is a breed of dog in the terrier family. The Bull Terrier's most recognizable feature is its head, described as 'egg shaped' when viewed from the front, almost flat at the top, with a Roman muzzle sloping evenly down to the end of the nose with no stop. The unique triangle-shaped eyes are small, dark, and deep-set. The body is full and round, while the shoulders are robust and muscular and the tail is carried horizontally. It walks with a jaunty gait, and is popularly known as the 'gladiator of the canine race'. Though this breed was once a fierce gladiator, it is much gentler today. A Bull Terrier might have a preventive effect and it will certainly defend its owner in a truly critical situation. Bull Terriers are known to be courageous, scrappy, fun-loving, active, clownish and fearless. The Bull Terrier is a loyal and polite dog. They become very attached to their owners.