Page 101 - World of Animals - Deadly Predators
P. 101

Lizards




              © Thinkstock








                                                                                                                           Fighting





                                                                                                                           back






                                                                                                                            Not all defence mechanisms are passive,
                                                                                                                            and the greater short-horned lizard is
                                                                                                                            certainly one species that doesn’t like to
                                                                                                                            go down without a fight. Able to adapt
                                                                                                                            their defensive behaviours depending
                                                                                                                            on their attacker, they have been known
                                                                                                                            to puff themselves up when faced with
                                                                                                                            narrow-necked snakes, making them
                                                                                                                            near-impossible to swallow. They will
                                                                                                                            also run at great speeds before stopping
                                                                                                                            suddenly to confuse predators giving
                                                                                                                            chase, but perhaps their most spectacular
                                                                                                                            mechanism is known as ocular auto
                                                                                                                            haemorrhaging. When under attack
                                                                                                                            from predators such as cats and dogs, at
                                                                                                                            least eight species of horned lizards are
                                                                                   GILA MONSTER
                                                                                   Heloderma suspectum                      capable of scaring off their attacker by
                                                                                   Lifespan 20-30 years                     squirting a stream of foul-tasting blood
                                                                                   Adult weight 350-700g                    from their eyes by restricting the blood
                                                                                   (0.7-1.5lbs)
              The Gila monster is one of                                           Conservation status                      flow leaving their head. This gruesome
              the most venomous lizards                                                                                     and shocking tactic is surprisingly
              in the world, producing                                                                                       effective at scaring off predators as large
              a haemotoxin that can
              cause respiratory failure in                                          NEAR THREATENED                         as coyotes, whose hyper-sensitive sense
              vulnerable adults                                                                                             of taste and smell is triggered by the
                                                                                                                            alarming display.



























                                                                                                                                                   The ossified scales of
                                                                                                                                                 Mexican beaded lizards
                                                                                                                                               protects them from other
                                                                                                                                                    predators and when
                                                                                                                                                wrestling by providing a
                                                                                                                                                         tough armour

                                                                                                                                         MEXICAN BEADED
                                                                                                                                         LIZARD
                                                                                                                                         Heloderma horridum
                                                                                                                                         Lifespan 20 years
                                                                                                                                         Adult weight 800g-2kg
                                                                                                                                         (1.8-4.4lbs)
                                                                                                                                         Conservation status
               © Thinkstock                                                                                                               LEAST CONCERN










                                                                                                                                                                        99
   96   97   98   99   100   101   102   103   104   105   106