Hammerhead sharks are aggressive hunters and feed on crustaceans, molluscs like octopuses and squids, and many types of fish. They also eat other types of sharks. Hammerhead Sharks favourite type of food is stingrays. They are known to swim along the bottom of the ocean, following their prey. Hammerhead sharks use their cephalofoil as a weapon to hunt for stingrays; they hit stingrays with their cephalofoil to weaken the stingray, and then eat the stingray. When Hammerhead Sharks can not find food, they have been known to eat each other, but Great hammerhead sharks have been known to eat their own young.