Monkfish caught at sea are usually female fish, and male fish are generally not seen. This is because the male fish parasitizes the body of the female fish shortly after birth, and most of them have become one with the female fish. However, if you look closely, you can still distinguish the shape of the male fish. It is rare in the animal kingdom for a male and a female to be so intimately connected. But there are also very few male fish that live alone. It is said that the male Ankang caught off the coast of Iceland weighed only one thousandth of the female Ankang.