The species has a modified dorsal fin that looks like a fishing rod with bait, which is used to lure fish close enough to swallow them whole. It also has skin flaps on its head and tail that look just like seaweed, and are used as camouflage. Because of its appearance, monkfish was long considered a non-fish. Fishermen did not take monkfish on board their boats as it was bad luck. Today, monkfish is considered a delicacy.