There are over 1 billion sheep in the world.

China has the largest number of sheep in the world.

Adult female sheep are known as ewes.

Adult male sheep are known as rams.

Castrated adult male sheep are known as wethers.

A group of sheep is known as a herd, flock or mob.

Young sheep are called lambs.

Sheep have a field of vision of around 300 degrees, allowing them to see behind themselves without having to turn their head.

Sheep are herbivores that eat vegetation such as grass.

The digestive system of sheep features four chambers which help break down what they eat.

Sheep like to stay close to others in a herd which makes them easier to move together to new pastures.

In 1996, a sheep named Dolly was the first mammal to be cloned from a somatic cell.

Domesticated sheep are raised for a number of agricultural products including fleece and meat.