The Bull Terrier's egg-shaped head, with no stop and small, triangular eyes, is unmistakable. The breed took shape in nineteenth-century England as a sleek, white gentleman's companion; colored Bull Terriers came later and are judged as a separate variety. Under the short, flat coat is a compact, muscular dog, usually 50 to 70 pounds and about 21 to 22 inches tall.
Many are clownish, affectionate and devoted, with a mischievous and stubborn streak. They often crave company, chew hard and can be wary of unfamiliar dogs, which matters on busy Plano trails. Some develop compulsive habits like tail chasing when bored. Weekly brushing handles the moderate shedding. Dogs vary, so judge each dog's own energy and manners rather than the breed's reputation.