Spiders, also called spiders, are a kind of book-made animal (arthropod) with two body segments, four pairs of legs, wingless, and have no chewing mouth. All types of spiders are grouped into Araneae order; and together with scorpions, throat, mites-all eight-footed-included into the Arachnida class. The field of study on spiders is called arachnology.
