Sheep are quadrupedal, ruminant mammals typically kept as livestock. Like all ruminants, sheep are members of the order
Artiodactyla, the even-toed
ungulates. Although the name "sheep"
applies to many species in the genus Ovis, in everyday usage it almost always refers to Ovis
Aries. Numbering a little over one billion, domestic sheep are also the
most numerous species of sheep. An adult female sheep is referred to as a ewe. Source
