Page 70 - World of Animals - Issue #28 Magazine
P. 70

Amazing animal hearing


            How’s your hearing?


              20 Hz – 20,000 Hz                      Man
                                                     Despite being the ‘boss’ of the
                                                     house, humans typically have
                                                     a hearing range under half of
             19,980 Hz range                         that of most household pets.



              60 Hz – 45,000 Hz                           Dog
                                                          This shows exactly why your dog can
                                                          hear the postman approaching from
             44,940 Hz range                              down the road, and why it is so good
                                                          at alerting you to any intruders.


              50 Hz – 80,000 Hz                                 Cat
                                                                How do you think cats can
                                                                hear birds and mice so easily
             79,950 Hz range                                    and proceed to bring them
                                                                into your house as a present?

                                                                                     Mouse
              2,000 Hz – 100,000 Hz                                                  Even if a mouse and a turtle found a
                                                                                     language they could both speak, they
                                                                                     wouldn’t be able to hear each other! Mice
                                                                                     have great hearing, but can’t hear the lower
             98,000 Hz range                                                         sounds that most animals can hear.








                                                                                                   Bat
                 2,000 Hz – 110,000 Hz                                                             Because of their poor eyesight, bats rely on
                                                                                                   their hearing to find their way around. By
                                                                                                   using ‘echolocation’ they can work out when
                 108,000 Hz range                                                                  walls and other objects are in their way.











                                                                                                                 Beluga whale
              1,000 Hz – 123,000 Hz                                                                              Most sound reception
                                                                                                                 in a beluga whale
                                                                                                                 happens in the fat-
             122,000 Hz range                                                                                    filled lower jawbone,
                                                                                                                 which conducts
                                                                                                                 sound waves through
                                                                                                                 the jaw to bones in
                                                                                                                 the middle ears.

              30,000 Hz – 160,000 Hz                                                                  Dolphin
                                                                                                      Dolphins are incredibly intelligent animals
                                                                                                      that use their lower jawbone to assist with
             130,000 Hz range                                                                         hearing, as well as using their antenna- © Thinkstock; Nature PL; Getty; FLPA; Corbis; Alamy; Independent Hearing Professionals
                                                                                                      like teeth for echolocation.

                                                                                                                   Porpoise
                                                                                                                   Related to dolphins
                                                                                                                   and whales, the
             75 Hz – 150,000 Hz                                                                                    porpoise has the
                                                                                                                   one of the largest
                                                                                                                   hearing ranges on
                                                                                                                   the planet.
             149,925 Hz range

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