18. Gull Dong
The Gull Dong is a cross between a Gull Terrier and a Bully Kutta, first bred in colonial India. Aggression has long been common in the breed. It is not recommended for homes with other dogs, small animals, or young children. Raising this puppy, which can weigh 88–132 pounds, is a big challenge. Gull Dongs are highly protective and make excellent guard dogs, but their strength and fighting spirit can lead to excessive hostility at home.