Page 65 - Allah's Artistry in Colour
P. 65

The fulgoridae are a species of
                often brightly coloured large
                homoptera that live in the trop-
                ics. Their heads extend out in the form of a hollow "horn". The species of fulgo-
                ridae has a horn-like growth on its head that imitates the open mouth (complete
                with teeth) of a crocodile. (Big picture) It is believed that the function of these
                horn-like extensions may also relate to courtship. The camouflage of the fulgori-
                dae in repose as seen in the smaller picture resembles the bark of a tree. When
                disturbed, it opens its wings to reveal two large "eyes". This surprises its ene-
                mies and gives the animal the chance to run away. 36

                                                      Some animals use hairs of different
                                                      colours in certain parts of their body as
                                                      alarm signs. For instance, when prong-
                                                      horn antelopes sense danger, they
                                                      broadcast warnings to each other with
                                                      their buttocks. Each haunch carries a
                                                      patch of white hair underlain by a disc of
                                                      muscle. In case of danger, it contracts
                                                      the muscle so causing the long hairs to
                                                      spread out into a huge rosette, which re-
                                                      flects light with particular efficiency.
                                                      When the muscle relaxes, the disc con-
                                                      tracts immediately. So bright white
                                                      flashes are produced that are visible to
                                                      other pronghorns even kilometres
                                                      away. 37
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