6. Fila Brasileiro
Fila Brasileiro is also called “Brazilian mastiffs” and is banned because of its aggressive nature towards unfamiliar people and dogs. They are not very training-friendly and do not respond to commands. They have the ability to fight jaguars so they can easily kill humans and other dogs.
As the name suggests, they were bred in Brazil and were originally used to protect the cattle and trained to chase runaway slaves. Even if they were bred in Brazil, they are thought to descend from European breeds which were brought into South America during the colonial period.
In terms of appearance, they are more cat-like and are non-static but are powerful without any doubt. They have large bones with loose skin. They are very calm but are always on their guard.
They are also known for their attacking style or pattern since it is different from other breeds. They don’t directly attack their prey. They rather wait and trap them so as to find the right moment to hunt.
They are not naturally trained and sometimes do not even respond to their master’s commands. They have an excellent tracking ability and have an unforgiving and impetuous temperament. Because of these reasons, they are banned in countries like the UK, Norway, some parts of Australia, and New Zealand. (1, 2)
These are hybrid of a wolf and domestic dogs so they have bigger brains, stronger muscles, and fearsome teeth and jaws that can kill an elk or a moose, or even a bison. These qualities make them more dangerous than other dog breeds and are also the reasons why this breed is banned in many countries.
Most of the wolfdogs are the product of a hybrid of a gray wolf, eastern wolf, red wolf, or an Ethiopian wolf with a domestic dog. The most common among the four wolf categories used for breeding is the gray wolf. Generally, the gray wolf and wolfdogs are considered the same breeds.
They have very unpredictable behavior, much more unpredictable than both dogs and wolves. Wolfdogs are considered under the non-domestic or wild animal category by a wolf specialist group, namely the IUCN species survival commission, and thus they are not considered as suitable pets.
Wolfdogs have extremely powerful bite force, and an adult wolfdog has the capacity to kill a bison. This makes them illegal to be privately owned in many American states such as Alaska, Georgia, Hawaii, Michigan, New York, etc. They are also banned in Finland. (1, 2)
The Boerboel originated in South Africa and is courageous, fearless, and shows powerful movements. The reason why they are banned in certain countries is that they have extremely fatal bite attacks. When they do bite, it can tear a person’s muscles, tendons, and in some cases even crush the bones.
The name “Boerboel” literally means “farmer’s bulldog,” and the name is given so because they were used to hunt down leopards and baboons in packs. Farmers and White people used to have these dogs in South Africa to protect themselves and their families in the woods.
They are mostly brown, fawn, or brindle in color. These dogs are very confident and show no signs of fear to other dogs or strangers. They even try to dominate or show aggression towards a threat.
These dogs cannot be left unsupervised with children and strangers because they act aggressively towards new people or threats. The breed is banned in Romania, Denmark, Russia, and Ukraine. Their mouths are required to be covered with a muzzle. (1, 2)
9. American bulldog
American bulldogs are family dogs and therefore they are extremely protective towards people who are familiar with them, especially children. Just like other dangerous dogs, they have a strong bite and if they are not socialized properly, they may attack their owners too, and that’s the reason why they are banned in many states in America and other countries as well.
American bulldogs are many times confused with American pit bull terriers that are more dangerous and banned more frequently than American bulldogs. These dogs are descended from Old English dogs and are used on animal farms and dog sports. In the 17th century, these dogs were used as guardians at farm stock dogs, and catch dogs as well.
These are stocky, muscular, and large-headed dogs. The American bulldogs are very friendly around their master and people they know but show excessive aggression towards new people since they have a history of serving as watchdogs on farms for decades.
Because they are unwelcoming to new people and animals and have a powerful bite, they are illegal to have as a pet in countries such as Denmark, Italy, Singapore, Ukraine, and some states of the US. (1, 2)
Bandogs require the breeding of any mastiff and American pit bull terrier. Therefore, they have the size of mastiffs and drives of the American pit bull terriers. They are basically illegal at places where there is a ban on their parent breeds.
These are not purebreds, and bandog is generally the term used to refer to a dog that is huge in size and is used for protecting property. In medieval times, they were chained the entire day and were released at night to roam and protect the property.
If they are socialized from a young age, they are great family dogs and go well along with adults, children, and other animals as well. They are unique in appearance and are colored very randomly. They are muscular and stocky just like their parent breeds.
Since they share almost the same characteristics in temperament with their parent breeds, they are banned at all the places where the two breeds are banned, namely bulldog and mastiff. The most common combination used for breeding a bandog is the Napolitan mastiff and American pit bull terrier. (source)