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How do Chameleon's Change Color? Chameleons exhibit remarkable optical phenomena. A chameleonâs skin can quickly and dramatically change color, its eyes allow it to look in almost all directions without moving its head, and it even has a rudimentary third eye! More than 100 species of true chameleons exist. They are found in Africa, Madagascar, Spain, southern Europe, Arabia, India, Sri Lanka, and the Seychelles Islands. Several color-changing lizards in the United States, commonly called anoles, are also popularly called chameleons.
If theyâre right, the lizard has a kind of distributed vision that is independent of its eyes, and perhaps its brain. In other words, it can âseeâ with its skin. This isnât a new concept. Some cells in the skin of fish like tetras and tilapias can change colour independently, thanks to their own opsins. And in 2010, Lydia MÃ¤thger and Roger Hanlon found that cuttlefish also have opsins all over their skin.