Page 179 - (DK) Super Shark Encyclopedia: And Other Creatures of the Deep
P. 179

“The two eyes                                           EXTRAORDINARY


                   of the mantis                                         EYES




                  shrimp move
                                                                          MANTIS SHRIMP

                         and work



             independently                                             Mantis shrimp need good eyesight. They smash or
                                                                       spear their prey with lightning-fast claws so they have
                  of one another”                                      to be a good judge of distance to get a direct hit and

                                                                       make a kill. Things could easily become confusing in the
                                                                       bright and shimmering world of a tropical reef filled with
                                                                       color and shining surfaces. Some creatures even have
                                                                       transparent shells, making them more difficult to spot.
                                                                       But the mantis shrimp’s eyes have so many different
                                                                       kinds of sensors to cope with these challenges that it
                                                                       can see everything clearly.



                                                                           AT A GLANCE

                                                                         •  SIZE  Up to 14 in (35 cm) long, depending
                                                                           on the species
                                                                         •  HABITAT  Muddy, sandy, and gravelly
                                                                           ocean floors and coral reefs, in shallow
                                                                           coastal waters
                                                                         •  LOCATION  Worldwide, with more species
                                                                           in the tropics
                                                                         •  DIET  Snails, fish, crabs, and shrimp









                                                                         STATS AND FACTS

                                                                                            VISION
                                                                                                                12 color receptors
                                                                         Different kinds of eye                  (mantis shrimp)
                                                                         sensors can detect
                                                                         different colors.
                                                                                                    0         5        10        15
                                                                         Mantis shrimps have               3 receptors (human)
                                                                         four times as many
                                                                         sensors as humans.
                                                                                            EYE DIAMETER          3 ⁄16– ⁄16 in
                                                                                                                     11
                                                                                                                  (0.5–1.75 cm)
                                                                                                    in     ¼       ½      ¾      1
                                                                          ROTATION OF EYES          cm   0.5    1    1.5    2   2.5
                                                                           90


                                                                           DEGREES

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