Narwhals are unique looking whales with large horn-like tusk
on their face.The name Narwhales means 'corpse whale' because they often swim
belly up,lying motionless for several minutes.They are calm but move quick when
threatened.
At birth, Narwhals appear their darkest with molted
black-greyish colouring & white spotted patterns.As they grow older their
dark colours begin to lighten.The long ivory tusk extends from the upper left
side of the jaw which measures 7-10 feet.The tusk is straight,spiraled upto 5
inches.
Narwhals have about 4 inches of fat to insulate them from
the cold arctic waters.They communicate by means of a variety of
squeals,trills,whistles & clicks.
They use their forehead sense of echo location to find
things like other marine mammals.They also use this part of the forehead to
feel sound waves as they bounce through the water.After gestation of
10-16months,females give birth to young ones.Mother Narwhals nurse their baby
till they reach 4 months.
Narwhals are 10-20 feet & weigh around 1600kgs.They feed
on squid & flatfish,They are found in the Canadian Arctic & Greenlandic
waters.They can live upto 50years.
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