Chihuahuas often show aggression due to their small size. Proper socialization and training can curb this tendency.
Dachshunds are prone to aggression, especially toward strangers and other dogs. Early socialization is key.
Chow Chows can be very territorial and distrustful of strangers. They require extensive obedience training.
Doberman Pinschers are intelligent guard dogs that can become aggressive without proper training. Their aggression has declined with breeding.
Akitas can be aggressive with strangers and intolerant of other animals. They need early socialization and firm leadership.
Boxers tend to be headstrong and aggressive toward other dogs of the same sex. They benefit from obedience training.
The Presa Canario is a mastiff breed prone to dominance aggression and territorial instincts. Extensive training is essential.