What is the worst breed of dog


What Makes Dogs Malicious?

What makes a dog aggressive is controversial among dog owners and breeders. While many people insist that even the most "dangerous" breeds with the right amount of socialization and proper, steady training can make excellent pets, others believe that certain breeds of dogs are at higher risk than others because of their breeding history; like the German Shepherd, only bred to protect and guard their families. This means that while they make fantastic pets and are usually safe around the family's children, they can be overly protected, which can lead to consequential injuries to strangers.

Dogs Bred to Fight - The Presa Canario

The Presa Canario is a massive breed of attack dogs known to attack and kill humans. They were originally bred for an Aryan Brotherhood dog fight ring, but were also used to guard livestock. The Presa Canario, also known as the "Canarian Catch Dog", require very early socialization and obedience training, but they have very experienced owners, are not safe animals and pose a threat to humans and other animals.

Tosa Inu

The Tosa Inu is one of the most dangerous dogs in the world. This massive breed of dog can typically weigh between 130 and 200 pounds and is around 32 inches tall. In many countries it is forbidden by law because the breed is aggressive. It originated in Japan where it was bred to be a strong, muscular dog when fighting other dogs. However, even the best trained dogs of this breed could become overprotective and attack humans.

Neapolitan mastiff

The Neopolitan Mastiff is most famous for the role of Hagrid's pet dog, Fang, in the Harry Potter films. Although 'Fang' is a docile, lazy creature in these films, in reality these dogs are banned in many different countries. They were used by the Roman legions as war dogs and also as gladiator dogs in bloody "sport" within the Colosseum in Italy, where the breed originated. Males can weigh over 200 pounds and are strong, wanton, and vicious.

Seagull Dong or Pakistani Bulldog

The Dong seagull is another breed that, unfortunately, was specifically designed to be used as a fighting dog. Also known as the Pakistani bulldog, it is the result of a Bully Kutta that was crossed with a seagull terrier. This dog is extremely aggressive and made even more dangerous by the fact that he is defiant, difficult to control, and incredibly powerful, muscular, and athletic. This breed should never be kept by someone who is not an expert in dog training as they will behave aggressively towards humans and other dogs if they are not properly trained and socialized from a very early age.

Pit bull terrier

Pit bull terriers were selectively bred from a number of other terrier breeds and bulldogs to create a breed of dog that is unmatched in dog fights. The people who set out to do this got it done - this dog ranks first for lean muscle tissue from pound to pound. Unfortunately, while this breed can make a loyal, friendly pet and excellent guard dog, this breed attracted the wrong attention around 1980 when these dogs were bought by many criminals and people involved in dog fight wrestling with a testimony of masculinity. Aggressive dogs were bred and encouraged to be aggressive towards other dogs in order to be excellent fighters. As a result, many formerly friendly, good-natured breeds are illegal in many countries and American states. They also have extremely high prey drive triggered by smaller mammals, which means families with smaller children would be incredibly unwise to own this dog. Many bites have resulted in deaths in both adults and children throughout history.

Breeds for hunting and guarding

The Caucasian Shepherd Dog, also known as the Caucasian Ovcharka, was bred for the purpose of guarding homes and livestock. It is a brave and strong-willed breed that can make training problematic. It is also prone to attacking strangers as it is very territorial. It is fearless, dominant, and powerful, which makes dogs of this breed very dangerous if not well trained. The males weigh at least 30 kg and are about 20 cm tall. Although many families insist that this dog be good around children, it is highly recommended that you not leave the two of them alone as accidental injury is easy to cause.

Rhodesian Ridgeback

The Rhodesian Ridgeback is known for keeping lions away from their master and also for prey while being hunted by the owner. This dog is an incredibly loyal companion when well trained, but unless held by an experienced dog owner who doesn't spend most of his time with the dog, this breed is known to become dominant and develop into one very aggressive side, with other dogs and also people.

Saint Bernard

The St. Bernard is another large breed of dog that was originally bred in the Italian Alps. Although they are depicted as giant teddy bears in many films and photographs, in reality they are very persistent and difficult to train, and require very early socialization. Saint Bernard dogs are known for rescuing people lost in mountainous areas.


The Basenji is a beautiful breed of dog and has been classified as a Greyhound for its incredible intelligence, constant alert state, and loyalty. However, they are considered the second hardest breed to train and can become aggressive towards other dogs and strangers if not properly trained.

Dogo Argentino

The Dogo Argentino was originally bred to hunt large game such as wild boars and pumas. Due to a number of attacks, it is illegal to own this breed in the UK under the Dangerous Dogs Act 1991. While this breed is friendly, loyal and affectionate to its owner, it protects them deeply and does not hesitate to turn on strangers if she thinks she is a threat. Extremely territorial, they make great guard dogs, but as mentioned earlier, they are vicious and instantly defend the territory and family from intruders.

Boer Boel

The Boer Boel is a large breed of mastiff from South Africa that was selectively bred for the purpose of the protection dog. Like the Argentine Dog, their loyalty to their family can make them vicious towards strangers and other dogs.

German shepherd dog

German Shepherds, as the name suggests, originally come from Germany and are very popular as pets and also as police dogs. They were bred to be excellent watch dogs and, due to their territorial nature, they fulfill this role very well. However, they are known to be overly protective, and this breed has been able to bite people who have been viewed as a threat to their "pack" or people who have "intruded".


Rottweilers were also bred to be heavy watch dogs and as such can be very good. Unfortunately, Rottweilers have earned a bad reputation as a result of frequent attacks on both humans and other animals, including animals such as sheep.

Many people say that these incidents are due to a lack of training and socialization. However, it is widely believed that if improperly handled, this breed can develop a diabolical streak that can overwhelm their family and home and have a high prey rate - more than a handful of Rottweiler attacks have occurred with young children recently.


From 1982 to 2012, at least 48 cases were reported of boxer dogs seriously injuring people. They can make wonderful pets if their owner has experience handling dogs and is able to devote the time and effort to training, but without that experience they can be fierce, dominant, and aggressive which means they are a threat to People can represent. This breed is known to be very attached to the family they live with. It can be a shock to see this popular breed on a list of other dangerous breeds, but picking this dog breed is not recommended if you've never owned a dog before.

The chow chow

The Chow Chow, affectionately known as the "fluffy lion dog", comes from China and is considered a high-risk breed. From 1979 to 1998 there were 238 deaths from dog bites because this breed was so protective of its owner. It's also a large, heavy breed, which means it can be a hazard to young children, even if just playing.

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