The hedgehog is a mammal. It lives in gardens, hedges and woodland across the UK, Ireland and Europe. This place is full of trees.
The hedgehog eats beetles, caterpillars and earthworms. It hibernates through the winter in a nest of leaves.
The hedgehog has about 5,000 to 7,000 sharp spines. These protect it when it rolls into a tight ball. It is about 25 centimeters long.
Baby hedgehogs are called hoglets. Hoglets are born with soft spines that harden within a few days.