Many cephalopods including octopus, cuttlefish, and squid similarly use colour change, in their case both for camouflage and signalling.
en.wikipedia.org In most cephalopods, such as octopus, squid, and cuttlefish, the hyponome is a muscular tube.
en.wikipedia.org The province is renowned for its agricultural produce, in particular potatoes and fish (cuttlefish and pollock).
en.wikipedia.org They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopodes, and cuttlefish, and more distantly to the nautiloids.
en.wikipedia.org