Originally from Southern Africa; this dog is known for its ability to keep lions away from prey while the dog’s master makes the kill. This semi-domesticated ridged hunting dog is loyal and intelligent, but is very aloof to strangers.
The Wolf Hybrid also known as the Wolf dog is a cross breed between a dog and a wolf (typically a grey wolf). Thus, Wolf-dog hybrids are a mixture of genetic traits resulting in less predictable behavior patterns compared to either the wolf or dog.
The Inu is a massive dog originally bred to be a fighting dog; it is considered dangerous and legally restricted in some countries.
Saint Bernards must be trained to be sociable with strangers and other dogs during their infancy in order to prevent aggressive territorial behavior.
Rottweilers are a powerful breed with well-developed genetic herding and guarding instincts and are potentially dangerous with irresponsible ownership, abuse, neglect, or lack of socialization and training.
Huskies can be dangerous to smaller animals due to their strong predator instinct and are known for being destructive if they are bored.
Extremely strong and powerful, the Dong was specifically bred as a fighting dog and is known to be very aggressive and difficult to control.
Also known as the German Mastiff or Danish Hound, this breed of domestic dog is famous for its massive size.
Known for being intelligent, confident, alert, vigilant, and fearless; the police use them for their K-9 units. They can become overprotective of their family and territory, and if not socialized correctly, can lead to attacks.
It has great tracking abilities but is an aggressive and impetuous dog. Owing to its size, temperament and potential for aggression, the Brazilian Mastiff has been banned in many countries.
The Dogo Argentino is a large, white, muscular dog that was developed in Argentina primarily for the purpose of big-game hunting, including wild boar and puma.
Although once used as guard dogs or police dogs, they also exhibit aggressive behavior directed to strangers and other dogs, though owner-directed aggression is low. Their aggression due to their size and strength can also make them potentially dangerous.
Though they seem to be distant and independent, this breed of dogs requires staunch attention from their owners if they do not want them to grow aggressive and ill-bred. This dog has discernment skills against strangers and can be fiercely protective of their owners.
The typical Caucasian Ovtcharka is assertive, strong-willed and courageous. However, unless properly socialized and trained, the Caucasian Shepherd may exhibit ferocious and unmanageable tendencies; it does not accept people it does not know and has a powerful urge to defend.
The Cane Corso is a well muscled dog that can weigh anywhere between 99 to 150 pounds. The breed is known as a true and quite possibly the last of the coursing Mastiffs and is a descendant of the Canis Pugnax, which were dogs used by the Romans in warfare.
Perro de Presa Canario
Presas require early socialization and obedience training. In some situations, the Presa can be aggressive toward other dogs and suspicious of strangers.
Known for their large egg shaped heads, Bull Terriers are exceptionally strong dogs with a #1 ranking in pound-for-pound lean muscle tissue. Though not particularly aggressive, the breed is known to have a strong “prey drive,” which makes them a dangerous dog towards smaller animals.
Originally from Germany where they can grow from 50 to 70 lbs, their bright, playful and energetic personalities are countered by their ‘headstrong’ characteristic.
These dogs were often a first line of defense against predators and were valuable in tracking and holding down wounded game. Bore Boels are loyal but very protective of their families.
A breed of hunting dog that originated from Central Africa, they have been classified as a sight hound. They exhibit alertness, curiosity and affection, though they are reserved with strangers.
The American Bull Dog is a muscular heavy dog. Though they are known for their pleasant and friendly demeanor, they can also exhibit the trait of ‘stubbornness’ as they are extremely confident. They were originally bred as a working farm utility dog that could catch and hold wild boar and cattle, kill vermin, and guard an owner’s property.
This incredibly strong dog is a cross breed between an American Pit Bull Terrier and a Neapolitan Mastiff and is incredibly muscular.
A breed of dog related to the Siberian Husky, this breed requires daily exercises to be happy, else they will become bored, disobedient and destructive.
Strong, independent and dominant breed, they are affectionate with family members but are aloof with strangers due to their territorial attitude.