The Yellow Boxfish (Ostracion cubicus) is a species of boxfish that can be found in the reefs of the Pacific and Indian Oceans. They are also found in the southern Atlantic Ocean.
It grows to about 17.75 inches long and is, as its name suggests, box shaped. Juveniles are bright yellow in color and as it ages the brightness fades. Once very old they are typically blue-gray in color with faded yellow. It feeds on algae, sponges, crustaceans and mollusks.
In 2006, Mercedes-Benz unveiled its Bionic concept car, inspired by the Yellow Boxfish.