Cordoba Fighting Dog
The Cordoba Fighting Dog originated in Córdoba, Argentina. The breed had such strong aggression toward other dogs that the males and females would rather fight than mate. In addition, many members of this dog breeds died in the dog fighting pits, contributing to the breed's extinction.
The Cordoba Fighting Dog was capable of hunting in a small pack of a male and female, otherwise they were more likely to turn on their packmates. The Cordoba was used as a contributing dog breed to create the Dogo Argentino.
Among the breed's ancestors, the most notable is the Bull Terrier, which at the time was still used in England for dog fights - at the same time Bull Terriers were being exported to the Indian subcontinent where today their lineage includes the Gull Terr. The Bull Terrier was responsible for the Cordoba Dog's coloration and fighting tendencies.