green, or blue. They are found in the rainforests of Central and South America, and have been introduced on some Hawaiian islands. Jewel-like colours are produced by chromatophores, irregularly-shaped ...

Chromatophores are organs that are present in the skin of many cephalopods, such as squids, cuttlefish, and octopuses, which contain pigment sacs ... they will reflect green light if green is ...