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Polar Bears Mario
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  • 1. Polar Bears By Mario
  • 2.
    • The polar bear is one of eight bear species. its Latin name is Ursus pursues maritimus,which means “sea bear”.
  • 3.
    • The polar bear is the
    • Youngest of the eighth bear species . Scientists believe that the polar bear evolved about 200,000 years ago from brown bear ancestors .
  • 4.
    • Polar bear are the world’s largest land predators. They top the food chain in the artic, where they dine primarily on seals.
  • 5.
    • The polar bear’s main prey is the ringed seal. The ringed seal is the most numerous seal in the arctic.
  • 6.
    • Adult male polar bears weigh from 775 to 1,500 pounds. Females are considerably smaller, normally weighing 300 to 550 pounds.
  • 7.
    • Adult male polar bears measure 6 ½ feet to 10 feet long, excluding the tail. Females measure 5 to 8 feet long, excluding the tail.
  • 8.
    • Polar bears range throughout the artic in areas where they can hunt seals at open leads. The 5 “polar bear nations” where the ice bears are found include the U.S (Alaska) Canada, Russia, Denmark (Greenland) and Norway.
  • 9.
    • Polar bears are superbly adapted for survival in the far north. They are well-insulated against the cold, and they are powerful enough to hunt seals successfully.
  • 10.
    • Polar bears have a superb sense of smell. They also have excellent hearing and eyesight. These heightened senses are necessary for survival in the changing conditions of the arctic.
  • 11.
    • Scientists estimate that there are roughly 20,000 to 25,000 polar bears throughout the arctic.
  • 12.
    • Polar bears are champion swimmers. They have been known to swim more that 60 miles without rest.
  • 13.
    • Polar bears’ forepaws are partially webbed to assist in swimming. The massive size of the forepaws measures up to 12’ in diameter.
  • 14.
    • The polar bear’s fat layer , which is 3 to 4.5 inches thick, not only protects it from the cold but adds to its buoyancy in the water.
  • 15.
    • The polar bear’s compact ears and small tail help prevent heat loss. When curled up in a ball, they often cover their muzzles to reduce heat loss as well.