38 World's Most Dangerous Dog Breeds You Must Be Aware Of

22. Bull Terrier

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You may recognize this breed as the Target dog, but Bull Terriers have a long history. They are strong and can strike hard when needed. Watch them closely with kids and other animals, as they have a high prey drive. Bull Terriers were bred for fighting, but with good training, they can be loving pets. Owners must be cautious around strangers, even if their dogs behave well at home.