Page 129 - World of Animals - Deadly Predators
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VISION                                                                                                     Dragon
               Dragonflies are thought to have
               possibly the best vision in the                                                                            or damsel?
               insect world, with over 28,000
               lenses in each eye providing a
               near-360-degree view.                                                                                      How can you tell the

                                                                                                                          difference between

                                                                                                                          these deadly predators?





                                                                                                                          While dragonflies and damselflies
                                                                                                                          can look similar, there are several
                                                                                                                          key differences. First, damselflies are
                                                                                                                          generally much smaller than dragonflies,
                                                                                                                          with noticeably slimmer and longer
                                                                                                                          bodies. Dragonflies look much bulkier
                                                                                                                          and stockier when seen together. The
                                                                                                                          second thing to look for is their wings:
                                                                                                                          when at rest, dragonflies hold their wings
                                                                                                                          out, much like an aeroplane. Damselflies
                                                                               WINGS                                      at rest, however, will fold theirs up and
                                                                               A dragonfly’s wings can move                hold them together across their back. The
                      STEALTH                                                  independently of each other,               hind wings of a dragonfly are also much
                                                                               helping them to seamlessly
                      Some species of dragonfly                                 change direction in mid-flight.             broader than the front ones. Damselflies,
                      (known as gleaners) will flush                            They can also hover, move                  on the other hand, have wings that are all
                      insects from dense vegetation                            backwards, and fly up or down.              the same size, and are much narrower at
                      in order to capture them in                                                                         the base. Lastly, dragonflies have large
                      flight. Others perch and watch                                                                       compound eyes that wrap around the
                                                                                                                      © Basile Morin  have large eyes, but with a gap between
                      for prey to fly overhead.                                                                            entire head of the insect. Damselflies also

                                                                                                                          them. Dragonflies and damselflies look
                                                                                                                          far more similar during the nymph stage
                                                                                                                          of their life cycles, however there is
                                                                                                                          one cunning way to tell them apart: a
                                                                                                                          dragonfly nymph has five points sticking
                                                                                                                          out at its rear end (known as appendages)
                                                                                                                          whereas a damselfly has three.
               WINGS

               Although most species are
               relatively small compared to                                    TEETH
               dragonflies, members of the                                      Both damselflies and dragonflies
               ‘forest giants’ group of damselflies                             belong to the order Ordonata,
               can have wingspans as much as 19                                meaning ‘toothed ones’.
               centimetres (7.5 inches).                                       Damselflies have razor-sharp
                                                                                                                                                                        © Saša Rajkov
                                                                               serrated teeth that they use to
                                                                               devour their prey in flight.





                                                                                                                          DRAGONFLY
                                                                                                                          The eyes of a dragonfly wrap around the entire
                                                                                                                          head of the insect








                             COLOURS

                             Damselflies come in a fantastic
                             array of colours, with bright
                             reds and blues often seen. The
                                                                                                                            © John Tann
                             males are usually more brightly
                             coloured than the females.



                                                                                                                          DAMSELFLY
                                                                                                                          Damselflies have large eyes with a gap between them




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