Bull Terriers will immediately remind people of their larger Pitbull brethren. Bull Terriers are most widely known for their white skin, egg shaped heads, long snout, and squat bodies. Though Bull Terriers aren’t exceptionally aggressive, they have shown the tendency to incite altercations with other dogs at a higher rate than companion breeds. This aggression is thanks in large part to their ‘prey drive’ which leads them to want confrontation with animals smaller than themselves. When raised right Bull Terriers are loving security dogs who have a knack for hunting, as well.