Sheep or domestic sheep (ovis aries) are domesticated, ruminant mammals typically kept as livestock. although the term sheep can apply to other species in the genus ovis, in everyday usage it almost always refers to ovis aries. like all ruminants, sheep are members of the order artiodactyla, the even-toed ungulates. numbering a little over one billion, domestic sheep are also the most numerous species of sheep. an adult female is referred to as a ewe (), an intact male as a ram, occasionally a tup, a castrated male as a wether, and a young sheep as a lamb. sheep are most likely descended from the wild mouflon of europe and asia, with iran being a geographic envelope of the domestication ...

Source: Wikipedia