Scorpions have eight legs and a pair of front appendages called pedipalps. These pedipalps have claws for catching their prey. Scorpions have long tails with a telson at the end, a stinger that serves as an organ of defence.
On their bellies, scorpions have comb-like appendages that are used as sensory organs. They can have up to 12 eyes, but their eyes are not very well developed.
Depending on species, they range in length from one to 20 cm.