The dogs are considered to be grown as pets in East Asia long time ago. They were using the dogs as guardians of the property. Today the dogs are considered to be as a subspecies of the gray wolf.
People today keep the dog as a pet, a member of the family. There are 800 species of this domestic dog in the world and among them are the Neapolitan Mastiffs, Tibetan Mastiffs, Husky, Saint Bernards and more.