Pit Bull Terrier: These dogs can be strong and protective, which, if not properly trained, may lead to aggressive behavior.
Rottweiler: Rottweilers are known for their loyalty, but they can be aggressive when not properly socialized.
German Shepherd: While often used in law enforcement, German Shepherds may become aggressive without proper training.
Bullmastiff: This breed is protective and can be aggressive if not trained and socialized.
Siberian Husky: Huskies have a strong prey drive and may show aggression if not properly managed.
Alaskan Malamute: Similar to Huskies, Malamutes can display aggression if not properly handled.
Doberman Pinscher: These dogs are known for their guarding instincts, which can become problematic without training.
Chow Chow: Chow Chows can be territorial and may display aggression if not well-socialized.
Akita Inu: Akitas are known for their loyalty but can be aggressive with other animals and people if not trained.
Wolf Hybrid: Crossbreeds with wolves can exhibit unpredictable behavior and should be handled cautiously.