Page 98 - World of Animals - Book of Sharks & Ocean Predators
P. 98

Sharks & Ocean Predators
                               WorldMags.net

        The incredible


        journey of the



       Humpback





       whale






         HUMPBACK WHALE        These giants of the
         Megaptera novaeangliae
                               world’s oceans make
         Class Mammalia
                               equally massive

         Territory All global oceans  migrations to fi ll their
         Diet Krill, plankton, small fi sh
         Lifespan 45-50 years

         Adult weight 40 tonnes   bellies, find a suitable
         Conservation status
                               mate and care for
                               their young
         LEAST CONCERN

        Undertaking one of the longest   building up fat stores (blubber) to live
        mammal migrations, humpback    off during winter months. The huge
        whales make spectacular annual   whales filter feed on tiny crustaceans

        journeys from their cold summer   like krill and plankton, and small fi sh
        feeding grounds, where they gorge   and can eat up to 1,360 kilograms
        on rich food, to warmer tropical   (3,000 pounds) of food per day.
        coasts in the winter, where they mate   During the winter, humpbacks
        and breed.                     congregate and engage in mating
         The humpbacks’ magnifi cent    activities. As polygynous creatures,
        acrobatic displays and complex songs   male humpbacks exhibit competitive
        can be witnessed in their distinct   activities on wintering grounds.
        populations, that are found within all   Aggressive behaviours include
        oceans across the Hemispheres.  chasing, tail-thrashing, body-
         In summer, humpbacks spend the   thrashing and a range of bubble and
        majority of their time feeding and   vocal displays.

                                                                                 “In summer, humpbacks
                                                                                   spend the majority of

                                                                                   their time feeding and
                                                                                   building up fat stores”




                                                                                  Survival stats

                                                                                 10,000                       1,360

                                                                                    km
                                                                                  The longest recorded  km/h      kg
                                                                                                2-3
                                                                                                                 The amount a
                                                                                 mammal migration – a   The average speed   humpback can eat
      © Thinkstock                                                               ventured all the way from   of the returning   summer, to survive
                                                                                   female humpback
                                                                                                               per day during the
                                                                                                 humpbacks and
                                                                                  Brazil to Madagascar.
                                                                                                                  the winter.
                                                                                                  their calves.
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