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
Set animal millenia until becoming standardized, making identification a difficult process; there is debate as to which hieroglyphs actually depict Set and the associated animal. Egyptologist Ken Moss has suggested the Set animal is in fact the Saluki, as it is one of the oldest breeds of domesticated dog, has a curved snout and nearly identical body, and is native to the region. Further, when the Saluki runs, its ears and tail become vertical, and cropped ears are a common and historic practice performed on hunting dogs throughout the Levant. The Saluki is further depicted in hieroglyphs without a connection to Set,