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
Bulldog breeds an extinct or nearly extinct type of dog. These include: Bulldog breeds Bulldog breeds is a collective name for various breeds of dog of a particular type, also known as bull breeds. The blood sport of dog-baiting animals has occurred since antiquity, most famously in the Roman Colosseum, a direct precursor to the modern Spanish sport of bullfighting. In the post-Roman era, baiting, per se, was most closely associated with the English, who pursued it with utmost earnestness. The pastime flourished, reaching the peak of its popularity during the sixteenth century. The Bullenbeisser, also known as the "German Bulldog", was