Right whales, have a smooth and elastic skin the color is dark. His body is black or gray with brown spots. The coloration of the calves is often more clear than that of adults. Examples are fairly common com white spots on his belly and occasionally on the back.
Under the skin, constantly renewed, have a thick layer of fat, with a thickness of between 14 and 35 cm that varies according to body area and season. Annually found in Whale Watching, whales with temporary or partial albinism, which is nothing but lack of pigmentation in the skin that will eventually darkens.