This page discusses chromatophores, irregularly shaped pigment cells found in animals like crustaceans, cephalopods, lizards, amphibians, and some fish. Their main function is camouflage, with variati...This page discusses chromatophores, irregularly shaped pigment cells found in animals like crustaceans, cephalopods, lizards, amphibians, and some fish. Their main function is camouflage, with variations by species. Cephalopods can swiftly change color due to muscle activity, while crustaceans and amphibians have fixed shapes that change color through granule movement, regulated by hormones.