Some have called the monkfish one of the ugliest fish in the ocean. Its giant, broad head is disproportional to its body and makes up 50% of its weight. Its small eyes sit at the top of its head, in contrast to its huge mouth that expands across its entire head. This enables the monkfish to feed on other marine animals that are almost its own size. The pointy, dangerous looking teeth can fold backward, making it easier for it to swallow its prey.
The monkfish is a predator who mainly preys on fish like rays and conger eel who live close to the ocean floor. It has a dorsal fin, which it can set up like a fishing rod in front of its mouth, to lure prey. Once its victim comes close enough to its huge mouth, it simply snatches it up.