Hedgehog: Amazing Pictures & Interesting Facts for Kids The hedgehog is a member of kingdom Animalia belonging to the subfamily Erinaceinae. They are small spiny mammals that grow up to 30 centimeters in length. There are various kinds of hedgehogs and they can be found in different parts of Europe, New Zealand, Asia and Africa. There are a total of 17 species found all around the world. Hedgehogs are easily identified because of the spines on their...