A female sheep is called a "ewe," a docile creature of high intelligence. Female sheep weigh between 150 and 200 pounds, and reach sexual maturity around 6 months depending on the breed, the type of nutrition available and the season in which they were born.
In captivity, ewes breed at 18 months, are pregnant 145 to 155 days, and produce one to two litters of lambs a year. Sheep have wool coats that help maintain body heat even when wet. Wool is durable and widely used in carpets and clothing. Cosmetics and ointments contain the lanolin that is expelled from wool, and due to a fat content twice that of cow's milk, sheep's milk is used to make Roquefort cheese.