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; the breeder, Antonio Nores Martínez, also wanted a dog that would exhibit steadfast bravery and willingly protect its human companion to the death. The Dogo Argentino is a large white short-coated dog with very muscular and strong body that rarely has any markings. The head has a broad, slightly domed skull and the muzzle is slightly higher at the nose than the stop, when viewed in profile. The tail is set low, thick at the base and tapers to a point. It has been described as looking similar to the American Bulldog but very tall with a solid white coat.
There are not many variations in the Dogo Argentino breed, size and weight are well described, as well as the color.
As with all breeds, the Dogo Argentino can be good with children, if properly socialized at early age. Dogo Argentinos have been bred specifically to allow better socialization with other dogs and are well suited for group environments. They get along with other pets in most rural and urban settings ranging from a complete outdoor farm dog to urban housing with a small yard, to crowded apartment buildings. Because aggressive traits are purposely bred out, attacks on humans or other pets are extremely rare. Despite the fact that the aggression traits were bred out, if this breed is not properly trained/socialized or it is under the supervision of a novice owner, it can have behavioral issues such as aggression, especially in males.
As in the Dalmatian, white Boxer, and the white Bull Terrier, the dogo may experience pigment-related deafness. There is possibility of an approximate 10% deafness rate overall with some dogos afflicted unilaterally (one deaf ear). Studies have shown that the incidence of deafness is drastically reduced when the only breeding stock used is that with bilaterally normal hearing.