History of the domestic sheep exact line of descent between domestic sheep and their wild ancestors is unclear. The most common hypothesis states that "Ovis aries" is descended from the Asiatic ("O. orientalis") species of mouflon. A few breeds of sheep, such as the Castlemilk Moorit from Scotland, were formed through crossbreeding with wild European mouflon. The urial ("O. vignei") was once thought to have been a forebear of domestic sheep, as they occasionally interbreed with mouflon in the Iranian part of their range. However, the urial, argali ("O. ammon"), and snow sheep ("O. nivicola") have a different number of chromosomes than other Ovis species,
European mouflon over 1,000 metres, unlike deer which rely mainly on smell. Despite their small size and weight, mouflon are very hard to kill and have to be hunted with weapons of sufficiently high calibre in order to ensure successful first-time kills. In Germany the hunting of mouflon is governed by hunting rights in accordance with the Federal Hunting Act. In the 2015/16 hunting season the bag in Germany amounted to 8,000 mouflon (in 2010/11 there were 7,270), of which 3,000 were shot in Rhineland-Palatinate and Thuringia alone, 38% of the total cull. The numbers shot, unlike other huntable wild animals, have