Originally there was no “breed” called Presa Canario or Dogo Canario in the Canary Islands, but rather a wide variety of bully/mastiff/guard/farm type dogs. These had any shape, size, or color much like other mixed breed dogs would. The name of these dogs varied as well, but it didn’t matter because it was not a “breed” at all, but just a collection of mixed breeds. When a group of Canary Islander aficionados got together to form a tightly specified “breed” as defined by a standard, with color, size, look, structure, and morphological limitations, there were some disagreements, however, the majority moved forward and formed a standard and became recognized in Spain as an official breed called the Dogo Canario.