and consists of protein together with a small percentage of lipids. This makes it chemically quite distinct from cotton and other plant fibers, which are mainly cellulose, and akin to silk, another animal fiber composed primarily of protein.

Today the largest market for wool is for wool from sheep. Wool's unique characteristics have made it highly valuable for clothing and textiles. It has a long history being used for apparel and other items while fueling trade and economic growth in many countries. Wool