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When identifying the most dangerous dog breeds, it’s important to rely on numbers and statistics rather than stereotypes. All dogs can become aggressive if not trained or treated properly, but certain breeds tend to be more frequently involved in serious dog attacks and even human fatalities.
By using data on dog bite injuries and fatal dog attacks from the American Veterinary Medical Association, we can get a clearer picture of the dangerous dog breeds that dog owners should be extra careful with, especially in homes with children or other pets and smaller animals.
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Regardless of the breed, it’s the dog owner’s responsibility to ensure that their pet is well-trained, properly socialized and cared for. All dogs have the potential to be loving and loyal companions, but they also need guidance to prevent aggressive behaviors.
American pit bull terriers are considered some of the most dangerous dogs due to the high number of incidents involving this breed. Dog bite statistics show that pit bulls are responsible for over 60 percent of all fatal dog attacks in the U.S.
Despite being loyal and loving to their owners, pit bulls can become aggressive, especially if improperly socialized. Powerful jaws give this breed particularly serious bite force, often resulting in significant dog bite injuries.
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Rottweilers also have a reputation as a dangerous dog breed frequently involved in serious attacks. As large and muscular guard dogs, they are known for their protective instincts which can turn into aggression if they perceive a threat.
Rottweilers account for around 10 percent of fatal dog attacks annually. Due to their strength, they often cause severe dog bite injuries. Proper training and socialization are crucial for this breed to avoid dangerous behaviors.
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German shepherds are commonly used as guard dogs and police dogs due to their intelligence and loyalty. However, their protective nature can sometimes make them aggressive dogs if they are not properly trained or socialized.
While not responsible for as many fatalities as pit bulls or Rottweilers, German shepherds are still considered a high-risk dog breed, with considerably more dog bite incidents than most other dogs each year.
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Unlike British bulldogs with their stout build, American bulldogs are leaner, stronger and potentially more dangerous. These attributes can make these dogs dangerous in the wrong circumstances when wild dog behavior takes over the domesticated pet nature.
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The bullmastiff is a large, powerful breed originally bred to guard estates. With their strength and protective nature, they have been involved in dog attack incidents, particularly when not properly trained.
Though they tend to be calm and gentle with pet owners and their families, bullmastiffs can show aggressive guard dog tendencies toward strangers or other animals.
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Though these sled dogs are known for their friendly and playful nature, Siberian huskies are occasionally involved in serious dog attacks, particularly on children.
Huskies have strong predatory instincts, and while they are generally good family dogs, they require more exercise and mental stimulation than other dog breeds.
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It is important to also remember how closely huskies and other wolf-hybrids are removed from nature. If they become frustrated or are poorly trained, they can lash out, leading to fatal attacks if they feel threatened by strangers or an unfamiliar dog.
Like Siberian huskies, Alaskan malamutes are large, energetic dogs bred for endurance and strength. While they are not commonly associated with fatalities, they are involved in a number of dog bite incidents each year.
Their strong-willed nature can make them difficult to control without consistent training, so some view them as potentially dangerous breeds if not handled correctly.
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Doberman Pinschers are well-known as guard dogs and are often praised for their loyalty and alertness. However, they are also responsible for several dog bites and attacks each year.
With their 600 psi bite force and athletic build, prospective owners should do all they can to turn this natural fighting dog into a lovable family pet.
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When not channeled properly, Dobermans’ protective instincts can lead to aggression, especially toward strangers. Their strong build and sharp reflexes make any dog attack from this breed a serious matter.
While the Chow Chow might look like a cuddly teddy bear, this breed is known for being highly territorial and independent. Chow Chows are responsible for a surprising number of dog bite injuries, especially given their relatively smaller size than other dangerous dogs.
Their stubborn nature makes them difficult to train, and without proper socialization, they may become aggressive.
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Great Danes are gentle giants most of the time, but their massive size alone makes them a potential risk. When they do become aggressive, they can cause serious harm. Although they aren’t involved in as many attacks as pit bulls or Rottweilers, their strength means that when they do bite, the injuries can be severe.
Boxers are known for their playful and energetic personalities, but they can also become aggressive under the wrong circumstances.
Though they have been involved in dog attack incidents less frequently than some other breeds on this list, their strong jaws and muscular bodies make their bites potentially dangerous.
While it’s difficult to generalize about mixed breeds since they come in all shapes and sizes, mixed-breed dogs are often implicated in dog bites and attacks.
Some data shows that certain mixed breeds, particularly those involving larger dogs or other dangerous dog breeds, can be responsible for dog bite injuries. As always, the behavior of a dog depends heavily on how they’re raised by their dog owner.
A dog’s behavior is deeply influenced by its upbringing, environment and training; a dog owner is the most crucial component of developing their pet’s temperament.
Some of the dogs on this list aren’t necessarily aggressive breeds, but some possess an incredible bite force that can lead to a life-threatening personal injury. Even if the bite doesn’t seem deadly, you should seek medical attention immediately if bitten to avoid further complications.
We created this article in conjunction with AI technology, then made sure it was edited and fact-checked by a HowStuffWorks editor.
Labrador retrievers, hounds, and shepherds are some of the best tracking dogs, with some of the most advanced senses of smell in the animal kingdom. Dogs have over 300 million smell receptors in a nuanced scent identification system that takes up 40 percent more brain space than humans have committed to this sense.
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