striped marlin (Kajikia audax)
Many fish, including the striped marlin (Kajikia audax), have protective colouring to help keep them safe from predators.
marlin
fish
marlin, any of several species of large long-nosed marine fishes of the family Istiophoridae (order Perciformes) characterized by an elongated body, a long dorsal fin, and a rounded spear extending from the snout. They are wanderers, found worldwide near the surface of the sea, and are carnivorous, feeding largely on other fishes. They are consumed as food and are highly prized by sport anglers. A number of species of marlins have been named; four are...