Page 28 - World of Animals - Issue #28 Magazine
P. 28

Amazing arthropods


            Giant water bugs

            attack moving

            prey bigger than

            themselves


            Giant water bugs have evolved an amazing
            attack ability that involves them patiently
            awaiting a victim and seizing it with
            enormous pincers. They will then inject
            poisonous digestive juices via its piercing
            rostrum. Once the enzymes have broken
            down the insides of its prey, the giant water
            bug is able to suck out the liquified remains.

              Researchers have observed this in action
            many times over. The aquatic insect has been

            observed eating pond turtles, snakes, fish and
            frogs but it doesn’t only spend its time near
            water. It is attracted to electric lights and
            often appears around streetlights and houses.
              However, one of the giant water bug’s
            party tricks is an ability to survive underwater
            for relatively long periods. It does this either
            by storing air within a dedicated space
            beneath its wings or by poking its lengthy
            respiratory tube out of the water to draw in                                                   GIANT WATER BUG
            fresh air, like a built-in snorkel.                                                            Belostomatidae
                                                                                                           Class Insecta
           “The aquatic insect has
            been observed eating                                                                           Territory Worldwide

            pond turtles, snakes,                                                                          Diet Invertebrates, fish,
                                                                                                           amphibians
                                                                                                           Lifespan One year
            fish and frogs”                                                                                 Adult weight Unknown

                                                                                                           Conservation status
                                                                                       ABOVE Giant water bugs are
                                                                                         usually found in ponds and   NOT EVALUATED
                                                                                             freshwater streams



                                                                      Male scorpionflies give
                                                                      gifts to females to avoid


                                                                      being gobbled up


                                                                      Love is a life-or-death endeavour when you’re a male scorpionfly. These

                                                                      insects are able to attract females with a pleasant courtship display
                                                                      using their scorpion-like tails, but if they don’t do enough to distract their
                                                                      chosen lady then they tend to become her next meal.
                                                                        As gruesome as it sounds, the females like to eat their partner after
                                                                      mating, which is why the male offers up a nuptial gift, typically involving
                                                                      secretions of his own saliva. A measly quantity may not save him, since
                                                                      the more he offers, the more attractive he becomes.
                                                                        The size of the gift correlates with the nutritional condition of the male
                                                                      and is an indicator of how strong his genetics are, and his suitability as a
                                                                      father. Those unable to produce enough may offer a gift in the form of a
                                                                      dead insect instead.

                                               ABOVE Males of the species   “The male offers up a nuptial gift,
                                               can be distinguished by their
                                                                    typically involving his own saliva”
                                               enlarged, scorpion-like tails

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