Final answer:
Wool is a warm fabric made from fibers of animals like sheep and llamas. It retains warmth even when wet and is commonly used in woven clothing.
Step-by-step explanation:
Wool: Wool is a fiber obtained from animals such as sheep, llamas, or yaks. It is woven into clothing that retains warmth even when wet. Wool is one of the warmest fabrics and is commonly dyed and woven on large looms.