sentence: Some species can rapidly change colour so as to keep in camouflage, or to signal.
sentences_after: They do this by moving pigment and reflective plates in chromatophores. This process is called physiological colour change. Cephalopods such as octopus have complex chromatophore organs controlled by muscles to achieve this. The display is under central nervous control based usually on input from the eyes.
concept_name: specie
headings: Chromatophore
categories: Ecology Physiology