the goblin shark senses its prey with the help of electro-sensitive organs. the jaws are made for rapid projection to help in the capture of prey. the jaw is thrust forward by a double set of ligaments at the mandibular (lower jaw) joints. when the jaws are withdrawn, the ligaments are stretched and they become relaxed when the jaw is projected forward. the jaws are usually held tightly while swimming, and have a function like a catapult when the goblin shark wants to feed. the front teeth are made for crushing. the goblin shark feeds on shrimps, pelagic octopuses, fish, and squids. it is also thought to feed on crabs, and deep-sea rockfish.