Pit Bull Terrier: Known for their strength and tenacity, Pit Bulls can display aggression if not properly trained and socialized.
Rottweiler: With a strong protective nature, Rottweilers can be potentially dangerous if not adequately trained and socialized from a young age.
German Shepherd: While commonly used as working and service dogs, German Shepherds possess protective instincts that can make them potentially dangerous if not properly handled.
Doberman Pinscher: Bred for protection and guarding, Dobermans can exhibit aggression if not trained, socialized, and given proper guidance.
Bullmastiff: Originally bred as a guard dog, Bullmastiffs can display aggression towards strangers if not properly trained and socialized.
Husky: While not typically aggressive, Huskies have a strong prey drive and may exhibit challenging behavior if not properly trained and given adequate physical and mental stimulation.
Alaskan Malamute: Similar to Huskies, Alaskan Malamutes have a strong instinct to roam and may display aggression towards other animals or be difficult to control if not properly trained.
Chow Chow: Known for their independent and aloof nature, Chow Chows can be potentially aggressive towards strangers and other animals if not properly socialized and trained.