Soay sheep shed their wool naturally in the spring. Sheep have no top front teeth but the roof of their mouth is hard. This permits sheep to eat vegetation close to the ground and prevents them from pulling up plant roots. One mature ewe produces 7 to 10 pounds of newly shorn wool a year - enough to make a man's suit. The small intestines from 11 sheep are needed to make 1 tennis racket.
Sheep have poor eyesight but an excellent sense of hearing.
One pound of wool can be spun into 20 miles of fine yarn.