"Wool is the textile fiber obtained from sheep and other animals, including cashmere and mohair from goats, qiviut from muskoxen, from hide and fur clothing from ...
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bison, angora from rabbits, and other types of wool from camelids; additionally, the Highland and the Mangalica breeds of cattle and swine, respectively, possess woolly coats.
Wool consists of protein together with a small percentage of lipids. In this regard it is chemically quite distinct from the more dominant textile, cotton, which is mainly cellulose." - (en.wikipedia.org 21.11.2019)