The Harlequin Duck is a duck that lives in the sea. The female is plain, but the male has white markings. This is called ruptive coloration and is a subtle form of camouflage. The male can be difficult to see against surfaces that are not a solid color, like water that ripple.
References[change | change source]
- Edward S. Brinkley. Creatures of the Air and Sea. Singapore: Sheena Coupe. pp. 19. .