Expert Rankings: Most Aggressive Dog Breeds  

Akitas, Japanese spitz-type working dogs, were bred to hunt enormous wildlife like Northern Japan's massive brown bears. Akitas, once owned by the imperial palace,

The Basenji is an African hound. One of the oldest domesticated dog breeds, it lived semi-feral with humans until the late 1800s. While territorial, the Basenji

A popular herding breed, Border Collies are among the smartest dogs in the world. Highly discriminating, Border Collies may dread and react to unfamiliar dog breeds and animals

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As with most canine aggression, fear and anxiety drive Chihuahuas' aggression. Chihuahuas, the smallest dog breed, are sometimes accused 

The Chow Chow, another ancient dog breed, was bred in China as companion dogs to aristocracy, guard dogs, hunting dogs, and hauling dogs. Chow Chows are serious, independent, and intelligent,

Doberman Pinschers were designed to protect families and fulfill canine duties. A breed utilized in military and police service due to its tenacity, fearlessness, and alertness. 

The Dogo Argentino, a powerful working breed from Argentina, hunts wild boar and pumas in groups. The intelligent, independent, and robust Dogo Argentino is muscular even without exercise. 

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