Yes, scorpions are indeed arachnids. Arachnids are a class of joint-legged invertebrate animals, and they include spiders, scorpions, ticks, mites, and harvestmen. Scorpions belong to the order Scorpiones and are characterized by their elongated bodies, eight legs, a pair of pincers called pedipalps, and a venomous stinger located at the end of their tail. They are commonly found in warm and dry regions around the world.