Wool

Wool is the textile fiber obtained from sheep and other mammals, especially goats, rabbits, and camelids. The term may also refer to inorganic materials, such as mineral wool and glass wool, that have some properties similar to animal wool. Wool is an animal fiber 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. Most wool used by the textile industry comes from sheep. Wool is also obtained from goats, camelids, rabbits, and several other mammals, although the names used for these fibres vary between industries and legal systems. After collection, wool is sorted and cleaned before it is carded or combed and made into yarn, felt, insulation, fertilizer, or other products.