Color changers
The greater argonaut’s color can vary from deep maroon to silver. The dorsal side of their mantle has large chromatophores and smaller chormatophores on the ventral side. The darker color on their dorsal surface and reflective silver on their ventral surface produces a method of camouflage known as countershading. A wide range of animals have chromatophores in their skin—tiny, complex organs that can bring about color change.
