26. Inu Tosa

The Tosa Inu, also referred to as the Japanese Mastiff, is a type of Japanese warrior dog that can weigh up to 200 pounds and pull loads that are significantly heavier than it. According to the American Kennel Club, these hounds’ powerful bodies and jaws can pull up to 3,000 pounds. If properly trained, these hounds can be loving and tranquil, yet their very presence may cause fear. Due to the dog’s penchant for violence, certain nations, most notably the United Kingdom, have outlawed it, according to BBC News. Bill Lambert of the Kennel Club highlighted, however, that just because a species was created for combat doesn’t automatically make it dangerous.