What is sheep?

Sheep are four legged, ruminant mammals. Globally, domestic sheep number more than one billion and are raised for their wool, meat, pelts, and milk. Their wool is a water-proof material, rich in lanolin; but to be used as fabric for clothing, the wool must be washed, carded, spun and woven or knitted. The natural color of wool is white, biege, brown, red/brown, or black. The wool is usually died prior to weaving or knitting.