The sheep is an animal which has a thick coat of fleece on its body. Sheep have hoofs that is divided into two toes. They have a gland between their toes. The horns of the ram is usually curved outward. Not all rams have horns. There are hornless breeds too. In some breeds, even the ewes have horns. The average life-span of a sheep is about 7 years. Some live longer.
Sheep and goats have been used for centuries to provide humans with food and fiber. However, in more recent times, these species of small ruminants are being looked at increasingly for their ability to manipulate forage to accomplish a variety of land management objectives, which benefit not only man, but also the environment.