Also known as the fin whale, its most prominent feature are its markings. The top and sides of the body are black or a dark greyish-brown, which fades gradually into white on the belly. The colour of the head, however, is asymmetrical. The right side of its face is light grey with a white jaw, matching the colouring of the throat and belly. The left side of its face is darker, with a dark grey jaw and throat. It also has a series of colour markings across the width of its back, behind its head, the most distinctive being shaped like an upside-down V, which is more visible on the right side.