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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.
Scientists believe that chameleons change color to reflect their moods. By doing so, they send signals to other chameleons. For example, darker colors tend to mean a chameleon is angry. Lighter colors might be used to attract mates. Some chameleons also change colors to help their bodies adjust to changes in temperature or light. For example, a chameleon that gets cold might change to a darker color to absorb more heat and warm its body. For many years, scientists believed that chameleons change their color by manipulating specialized cells â called chromatophores â that contain different colors of pigment.