Page 79 - (DK) Super Shark Encyclopedia: And Other Creatures of the Deep
P. 79

PUT ’EM UP!




                                                                          BOXER CRAB






                                                                       Here is a crab that is no bigger than your thumbnail,
                                                                       but what it lacks in size it makes up for in nerve. It clasps
                                                                       a miniature stinging anemone in each pincer and holds
                                                                       them out like a pair of pom-poms or boxing gloves.
                                                                       Should any predator come too close, the boxer crab
                                                                       waves the anemones about, and the stings help keep
                                                                       the danger away. But carrying anemones also has its
                                                                       problems. The crab cannot use its pincers to break up
                                                                       food. Instead it nibbles on plankton that sticks to the
                                                                       anemone’s tentacles. When two boxer crabs meet, each
                                                                       makes a show of waving their pom-poms in a pretend
                                                                       fight, but they rarely make physical contact.




                                                                           AT A GLANCE

                                                                        •  SIZE   ⁄8–1 in (1–2.5 cm) shell width
                                                                               3
                                                                        •  HABITAT  Coral reefs
                                                                        •  LOCATION  Tropical coastlines

                                                                        •  DIET  Tiny animal plankton, collected
                                                                           with its anemone pom-poms











           “Some boxer crabs                                                 UNDER         STATS AND FACTS
                                                                             1

          use their anemones                                                               LENGTH OF PINCER  ¼  ½     ¾      1
                                                                                                    in
                                                                              SEC
                                                                         BOXING SWIPE TIME
            to brush food                                                                           cm        1     3 ⁄8–¾ in (1–2 cm)  3
                                                                                                                        2

                                                                                           DIAMETER OF POM-POM
                  off rocks”                                                                        in   1 ⁄16  1 ⁄8  3 ⁄16  1 ⁄4

                                                                            1                       cm       0.25  1 ⁄8– ⁄16 in (0.25–0.5 cm) 0.75
                                                                                                                       0.5
                                                                          MAX. TIME FIGHTING
                                                                                                                   3

                                                                            MINUTE
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