Page 8 - Chameleon
P. 8

Skin  of  many  colors
     Changing skin color is an im-                         new study has found that chame-
     portant part of communica-                            leons can rapidly change color by
     tion among chameleons. Ac-                            adjusting special cells, called iri-
     cording to the San Diego Zoo,                  A dophore cells, in each layer. The
     a chameleon's skin changes                     chameleons can change the structural ar-
     colors in response to its emo-                 rangement of the upper cell layer by relaxing
     tions,  such  as anger or  fear,               or exciting the skin, which leads to a change
     changes in light, temperature                  in color, researchers found.  Chameleons live
     or humidity. The brighter the                  in Madagascar, Africa, Spain, Portugal and
     color, the more dominant the                   Asia in rain forests, savannas, semi-deserts
     male is, and the more attrac-                  and steppes, according to the San Diego
     tive he is to females. A sub-                  Zoo. They typically stay in trees or bushes,
                                                    though some species do live on the ground.
                                                    For example, the horned leaf chameleon
         6                                          lives in dead leaves on forest floors accord-
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