Pottok the Losino, the Galician, the Landais, and the Monchino horses. Tests have revealed considerable genetic differences between populations in the Northern Basque Country and the Southern Basque Country, leading some to consider them separate breeds. Some claim the Pottok's origins derive from the horses on ancient cave paintings in the area and thus claim to descend from the Magdalenian horses of 14,000–7000 BC. Other link its origins to an influx of horses during the Bronze Age. However, neither of these theories has to date been scientifically verified. Genetic research by the University of the Basque Country's Genetics, Physical Anthropology and
Sighthound and pariah group Hounds are hunting dogs that hunt by endurance, following the scent of a game animal (scent hounds); or by speed, following the animal by sight (sighthounds). There are a few breeds of the "sighthound type", and many breeds of the "scent hound" type. Pariah dogs refers to a broad class of specific "types" of feral dogs. Any of these animals, if a breed club develops and if the dogs are sufficiently documented according to kennel club rules, might apply for listing as a breed of dog. Kennel clubs assign breeds of dogs to "Groups", which are loosely based on breed