Page 66 - World of Animals - Issue #29
P. 66

L
     L
     L          OST FOREVER
     L
                OST FOREVER
                OST FOREVER
                                   a
                                   a
                              t
                   in
                   in
                                           I
                                                                  n
                                                                         d

                                                                  n
                                                 s
                                                 s
                                                       la
           Pinta Island
           P P                t            I           la                d
           tortoise
                                                                        Santa Cruz
                                                                        Santa Cruz
                                                                          Island
              Chink in the armour                                         Island                                      Heavyweight
              Chink in the armour
              Although heavily protected                                                                        Weighing the equivalent of
              Although heavily protected
                                                                                                                Weighing the equivalent of
              around most of its body, the
              around most of its body, the                                                                     several adult male humans,
                                                                                                               several adult male humans,
              Pinta Island tortoise had a
              Pinta Island tortoise had a                                                                       these Galapagos tortoises
                                                                                                                these Galapagos tortoises
              saddleback shell that le‡ its
              saddleback shell that le‡     its                                                                benefi  ted from gigantism by

                                                                                                               benefited from gigantism by
              neck exposed.                                                                                     being able to float for long
              neck exposed.

                                                                                                                being able to fl
                                                                                                                         oat for long
                                                                                                             distances between islands and
                                                                                                             distances between islands and
                                                                                                               were able to survive extreme
                                                                                                               were able to survive extreme
                                                                                                             temperatures without diffi     culty.
                                                                                                             temperatures without diffi culty.
                                                                                                                       Slowcoach
                                                                                                             Growing throughout their entire
                                                                                                             Growing throughout their entire
                                                                                                               lives, the tortoises had very
                                                                                                               lives, the tortoises had very
                                                                                                               slow metabolisms and most
                                                                                                               slow metabolisms and most
                                                                                                              commonly died of disease and
                                                                                                              commonly died of disease and
                                                                                                                injury rather than old age.
                                                                                                                injury rather than old age.
                                                                                                     “Tortoises were
                                                                                                      a viable source
                                                                                                     of food for long,
                                                                                                   oceanic journeys”



            When Charles Darwin stopped off at the   have been relatively easy for this subspecies until   Last seen…
            Galapagos Islands in September 1835 on his   the arrival of intrepid whalers and hunters in the
            famous Voyage of the Beagle, he was awed by   17th century. Weighing up to 250 kilograms (551   Date: 24 June 2012
            the diversity of life. In his field journal and memoirs   pounds) each and simple to catch (if not to carry),   Location: Santa Cruz Island

            he frequently talks about the giant tortoises, their   Pinta Island tortoises were a viable source of food   Although the subspecies was thought to have
            complete lack of fear of humans and how hunting   for long, oceanic journeys.        died out in 1906, a Hungarian scientist studying
            had put a dent in the population. “In the woods   Moreover, their slow metabolism meant they   molluscs spotted an adult male tortoise on
            there are many wild pigs and goats,” he wrote,   could survive up to a year without food or water,   Pinta Island in 1971. It was moved to the
            “but the staple article of animal food is supplied by   making them a good source of fresh meat, too.   Charles Darwin Research Station on nearby
            the tortoises. Their numbers have, of course, been   Anything from a few hundred to over a thousand   Santa Cruz Island for its safety in 1972 and was
            greatly reduced on this island… It is said that single   could be taken away in large vessels and they   named ‘Lonesome George’. Attempts were
            vessels have taken away as many as 700...”  made good ballast, easily dumped overboard   made to mate George with females of another
              Pinta Island tortoises, along with the other giant   during naval confrontations. Back on the island,   subspecies but although eggs were laid, none
            shelled reptiles of the Galapagos Islands, were   competition for grasses and vegetation from   of them hatched. Sadly, Lonesome George
            the biggest in the world. Their size and armoured   voracious non-native herbivores like goats and   lived out the last 40 years of his life in captivity,
            shell meant the adults had no natural predators.   pigs, introduced for local human inhabitants, piled   surviving to an age estimated to be over 100  © freevectormaps.com; Alan Batley
            They ate mostly grasses, cacti and native fruit,   on the survival pressure. By the late 19th century,   years. He died of heart failure in 2012 and
            and drank large quantities of water that they then   the Pinta Island tortoise population was in a freefall   during his last years was known as the rarest
            stored in their shell during drought. Life must   it would not recover from.         creature in the world.

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