Page 154 - World of Animals - Book of Sharks & Ocean Predators
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Sharks & Ocean Predators
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        12. The macaroni is the                                                                       are able to
                                                                                                        14. They
        most common species                                                                            consume

                                                                                                     stones to aid
                               With an estimated 20   Shetland Islands among many others, with the animal
          MACARONI PENGUIN     million individuals in   spreading far and wide – especially during foraging   with digestion
          Eudyptes chrysolophus  existence, the macaroni   trips – and frequently coming into contact with   Scientists believe penguins will
          Class Aves
                               penguin is the most   scattered human settlements.                   actively consume small stones
                               numerous penguin       Aside from its high numbers, the macaroni penguin   along with food to aid digestion
                               species living on Earth   is also known for its remarkable fasting behaviour.   within their stomach. The stones
                               and millions of birds   During the species’ breeding period the male fasts   are also believed to add weight
          Territory Subantarctic  occupy a range that   for around 37 days after the arrival of the egg, before   and aid the birds’ diving.
          Diet Carnivore
          Lifespan 15-20 years  stretches from the   swapping with the mother for a ten-day period
          Adult weight 15.5kg / 12lbs  subantarctic to the   to forage, while the female then fasts for 42 days
          Conservation Status                                                                      15. An emperor
                               Antarctic Peninsula.   straight. When the male eventually returns from
                               To be precise, at least   foraging, it then proceeds to fast once more for a   egg takes 67
                               216 colonies have been   similar time frame.
          VULNERABLE                                                                                days to hatch

                               identified at over 50   Due to this extensive fasting habit, both male and   As you may expect, the largest
                               different sites around   female macaroni penguins lose between 35 and
        the world. The macaroni penguin can be found from   40 per cent of their total body weight during the   penguin species in the world –
                                                                                                    the emperor penguin – has the
        Chile, through the Falkland Islands and onto the South   hatching and raising period.
                                                                                                    longest incubation time in-egg
                                                                                                     than any other, with it taking
         “Macaroni penguins lose between 35 and 40 per                                             over two months for any chick to
                                                                                                       hatch into the world.
        cent of their total body weight during the hatching
                                                                                                        16. Most
                                 and raising period”                                               species lay two
                                                                             Widespread species
                                                                             Macaroni penguins living   eggs at a time
                                                                             on the snow-covered     All penguins, aside from the
                                                                             slopes of Cooper Bay,
                           Bluish-black plumage                              South Georgia.         emperor and king species, tend
                           The macaroni has a black                                                 to lay two eggs in a nest made
                           plumage with a bluish sheen
                           when new and a brownish                                                  of stones, bones and moss. The
                           sheen when old, just prior to                                           emperor and king penguins only
                           molting.                                                                ever lay one, however, and don’t
                                                                                                    build nests but incubate the egg
                                                                                                    on the tops of their feet to keep
                                                                                                      them from the cold fl oor.
                                                                                                     17. Penguins
                                                                                                     breed during
                                                        Crested species                               spring and
                                                        The macaroni penguin
                                                        is one of six species of                        summer
                                                        penguin with a crest.
                                                        This stretches from the                    Aside from the emperor penguin,
                                                        centre of the forehead to                   which breeds during the cold of
                                                        the nape.                                   the harsh Antarctic winter, all
                                                                                                    other species of penguin breed
                                                                                                    during the spring and summer
                                                                                                      months, when generally
                                                                                                     conditions are a lot warmer.

                                                                                                         18. Male
                                                                                                       emperors
                           13. 1 in every 50,000 penguins is born                                     make very
                           with a unique brown plumage                                               good fathers
                                                                                                    As soon as a female emperor
                            Around 1 in 50,000 penguins is born as an   backdrop of ice and snow, therefore off ering no   penguin produces an egg, the
                             isabelline penguin. These unique and rare   camouflage against predators, these isabelline   male partner immediately takes

                              penguins are marked due to their distinctive   variants tend to have shorter life expectancies   over the caring duties, incubating
                              brown plumage, which is caused by a similar   than regular penguins.   the egg carefully on the top of his
                               biological process to albinism.   Additionally, even if an isabelline penguin   feet. While he’s doing this, the
                                 Unfortunately, due to their brown plumage   somehow survives against predation, it o  en then

                                standing out against the animal’s native   finds it difficult to mate, with the other penguins   female emperor travels away on


                                                                                                     a hunting and feeding trip.
                                 LEFT Isabelline penguins are extremely rare   with normal plumage overlooking it when the
                                and also have a shorter life expectancy  breeding season arrives.
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