Flatfish
Flatfish can camouflage themselves by imitating the color of the underground. They become sand-colored on sandy bottoms and patchy stone-colored on pebbly bottoms. You can hardly see them anymore. Flatfish begin their lives as normal swimming fish but get a flattened body within a couple of weeks. They are totally adapted to living on the sea floor. Even their eyes move to one side of their head. If you were to weigh all the fish in the southern North Sea, around one third of the total would be flatfish.
