EVERYDAY SCIENCE

Detailed explanation-1: -Countershading is a form of camouflage in which the top of an animal’s body is darker in color, while its underside is lighter. Sharks use countershading. When seen from above, they blend in with the darker ocean water below.

Detailed explanation-2: -Countershading is a form of concealing coloration in which the upper surfaces of the body are more darkly pigmented than the unilluminated lower areas, giving the body a more uniform darkness and a lack of depth relief.

Detailed explanation-3: -Countershading, the widespread tendency of animals to be darker on the side that receives strongest illumination, has classically been explained as an adaptation for camouflage: obliterating cues to 3D shape and enhancing background matching.

Detailed explanation-4: -Synonyms. Dorsal pigmentary darkening; Obliterative shading; Optical flattening; Thayer’s law.

Detailed explanation-5: -Countershading, or Thayer’s law, is a method of camouflage in which an animal’s coloration is darker on the top or upper side and lighter on the underside of the body.