The Xolo is a very devoted, caring and extremely attentive dog that dislikes being apart from its human owner. They tend to bond primarily to one person but are devoted to the entire family. Xolos are alarm dogs, not attack dogs. They usually place themselves between master and stranger and insist on remaining there. Xolos are still 'primitive' in some of their behaviors and reactions and require respect and structure in their daily routine. They are extremely smart and respond very well to obedience training. Consistency is very important when training the Xolo, as it is in training all dogs.The Xolo ranges in size from very small Chihuahua size to quite large or Doberman size. The Xolo is a rare breed, numbering approximately 4000 in the world. It is not common, even in Mexico. Members of the Federacion Canofila Mexicana began a registration and breeding program for the Xolo on May 1, 1956. Prior to that time the Xolos were considered nearly extinct. In the fifties the AKC recognized the Xolo for a short time. It is not an AKC breed at this time.