1.FILA BRASILIERO
Fila Brasileiro is a Brazilian breed of large working dog of mastiff type. It is used as a guard dog, for cattle herding & for big-game hunting. In the 18th century, when slavery was still legal in Brazil, it was used to return escaped slaves to their owners
2.DOGO ARGENTINO
Dogo Argentino is an Argentine breed of large dog of mastiff type. It was bred primarily for dog-fighting, but also for hunting large game such as peccaries, wild boar and pumas.
3.AMERICAN PITBULL TERRIER
American Pit Bull Terrier is a medium-sized, short-haired dog of a solid build. They’re fighter dogs that will enthusiastically go after their task until completed! They have a very powerful jaw a& bite and are known to not release their bite easily!
4. TOSA INU
The Tosa Inu is a breed of dog of Japanese origin that is considered rare. It was originally bred as a fighting dog and is the only breed still used (legally) in Japanese dog fighting. Ownership is restricted in some countries as a dangerous breed.

5. PRESA CANARIO
The Presa Canario is a Spanish breed of large dog of mastiff or catch dog type. It originates in the autonomous region of the Canary Islands. It was traditionally used as a guard dog, as a herding dog for both sheep and cattle, and for dog-fighting.
6.DOBERMAN
Dobermann is a German breed of medium-large domestic dog of pinscher type. The ears were traditionally cropped and the tail docked, practices which are now illegal in many countries.
The Dobermann is intelligent, alert and tenaciously loyal.
7. WOLFDOG
A wolfdog is a canine produced by the mating of a domestic dog with a gray wolf, eastern wolf, red wolf, or Ethiopian wolf to produce a hybrid.
8.RHODESIAN RIDGEBACK
The Rhodesian Ridgeback is an all-purpose ‘Renaissance hound’ whose hallmark is the ridge, or stripe of backward-growing hair, on his back. The breed is famous in native Africa for its skill at tracking and baying.