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Chameleons mostly live in the rain forests and deserts of Africa. The color of their skin helps them blend in with their habitats. Chameleons that hang out in trees are usually green. Those that live in deserts are most often brown.
They often change color to warm up or cool down. (Turning darker helps warm the animals because the dark colors absorb more heat.) They also switch shades to communicate with other chameleons, using bright colors to attract potential mates or warn enemies.
So how exactly do chameleons change colors? The outer layer of their skin is see-through. Beneath that are layers of special cells filled with pigment—the substance that gives plants and animals (including you) color. To display a new color, the brain sends a message for these cells to get bigger or smaller. As this happens, pigments from different cells are released, and they mix with each other to create new skin tones. For instance, red and blue pigment may mix to make the chameleon look purple.
