Chameleons use camouflage to blend in with their surroundings, making them difficult to identify for predators and prey.
They change colour to communicate, with males wooing females or warning off others, and females showing pregnancy or disinterest in mating.
They regulate their body temperature by changing colour, darkening in cold weather to absorb more heat & lightning in hot weather to reflect more heat
They also change colour by adjusting pigment levels in their two layers of skin, which are affected by muscle contractions or relaxation.
Scientists are still exploring the intricate mechanism of chameleons changing colour quickly, which can happen in seconds.
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