photo by @joelsartore | It’s hard to believe that this four-horned chameleon, photographed at the @stlzoo, is good at blending in with its striking #green color! These reptiles, originating from Cameroon, Africa, live in rainforests that can receive up to 400 inches of rain annually. #Follow me, @joelsartore, for more fantastic animals from the #PhotoArk. #joelsartore #photooftheday #Africa by natgeo

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