How wool is formed?

Wool is formed from the fleece of sheep and other animals, primarily through the growth of a protein called keratin in their hair follicles. As the sheep grows, the fleece is continuously produced and eventually becomes long enough to be sheared off. The shearing process typically occurs once a year and involves careful cutting to avoid harming the animal. Once harvested, the wool is cleaned, processed, and spun into yarn for various textile applications.