You cannot mistake hedgehogs for anything else. They are Britain's only spiny mammal. The spines are without doubt the hedgehog's most intriguing feature. A 1lb 5oz (600g) hedgehog has 5,000 - 6,000 spines. Many people do not actually know the colour of the hedgehog's spines. They are brown at the base, and fade to white at the top. If you look closely at a hedgehog you will notice that they have a white tint to them.

The hedgehogs legs are about 4 inches (10cm) long. You often cannot see how long those legs really are, because hedgehogs rarely extend them fully, and they are covered buy fur on the underbelly. With those legs hedgehogs can manage short sprints of up to 6mph. There speed varies on what they are doing. If they have somewhere to go, they will move at about 2mph. When they are foraging, however, their speed falls greatly, just a few starts and stops whilst they look for insects.

The hedgehog's head and body together is 8-12 inches (20-30cm) long. The hedgehog's tail is about 3/4 of an inch.

And how big are hedgehogs ears? About 1 inch (2-3 cm).