Scorpion

Scorpions are predatory arachnids with eight legs, a pair of grasping pincers and a narrow, segmented tail, often carried in a characteristic forward curve over the back and always ending with a stinger. The evolutionary history of scorpions goes back to the Silurian Period, approximately 430 million years ago. They mainly live in deserts but have adapted to a wide range of environmental condition... (Wikipedia)