There are many different kinds of scorpions .
All scorpions have a hard skin also called an exo skeleton.
They are related to spiders and fleas, although spiders and scorpions fight brutally. If his prey is struggling too much he uses his deadly venom in a sharp barb on the end of his tail. The scorpion is not a insect. It belongs to a group called arachnids. It is about 8 in.