Jackie Burggraf pd. 0 Polar bears
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Jackie Burggraf pd. 0 Polar bears Presentation Transcript

  • 1. Polar Bears (Ursus Maritimus) By: Jackie Burggraf Buchmann Biology 0 period
  • 2. Statistics
    • Polar bears are on average 7 to 10 feet tall
    • They weigh on average 1,800 pounds but the largest polar bear weighed over 2,200 pounds
    • All polar bears have thick fur to keep them warm through the freezing temperatures of the Arctic.
    • Polar bears look white but their skin is actually black and their fur is actually clear, they only appear white due to the suns reflection off their clear fur.
    • Their white appearance also helps them blend in with the snow of the Artic
  • 3. Habitat
    • Polar Bears live in the Arctic which is located in the northern part of the globe.
    • They are often spotted in parts of Russia, Norway, Greenland, Canada and Alaska along the ice floes.
    • The average temperature in the winter is -29 degrees F and in the summer 32 degrees F.
    • They are able to live in these extreme temperatures due to their thick fur.
  • 4. Polar Bears are usually found in this circumference called the Arctic circle Dark green- normal range polar bears are spotted in Light green- occasional range they are found in over land White- occasional range found over permanent ice
  • 5. Food source
    • Polar bears favorite prey are seals, they even hunt baby seals
    • They attack when the seals come up for air or when they are resting on the ice
    • Polar bears also eat walruses, reindeer, ducks and seabirds
    • They are mainly meat eaters but they sometimes eat eggs, berries and seaweed
    • Polar bears sometimes have trouble finding food which causes them to eat whatever they can find even trash and whales that wash up onto shore
  • 6. Offspring
    • When a baby polar bear is born it weighs 1kg
    • The baby Polar bear stays with its mother for about 3 years
    • Has no fur when it is born
    • The baby follows its mother and drinks its mothers milk
  • 7. Facts
    • Paw pads with rough surfaces help prevent polar bears from slipping up on the ice.
    • Only humans prey or hunt polar bears
    • Polar bears tend to overheat more than to be cold.
    • A polar bear is so strong, that it can kill an animal with one blow from it's paw.
    • Man made pollution is a cause of death for polar bears.  
    • Some female polar bears deviate from the one room den.  They build dens with multiple rooms and even a ventilation system in the roof.
  • 8. Work Cited
    • Pearl, Norman. &quot;Polar Bears: Arctic Hunters.&quot; PowerKids Life Science, Rosen Publishing Group, Inc., 2011. 29 Apr. 2011 < http://www.pklifescience.com/article/103/polar-bears-arctic-hunters >.
    • Miller, Sara Swan. &quot;Polar Bears of the Arctic.&quot; PowerKids Life Science, Rosen Publishing Group, Inc., 2011. 29 Apr. 2011 < http://www.pklifescience.com/article/374/polar-bears-of-the-arctic >.
    • Pearl, Norman. &quot;Polar Bears: Arctic Hunters.&quot; PowerKids Life Science, Rosen Publishing Group, Inc., 2011. 2 May. 2011 < http://www.pklifescience.com/article/103/polar-bears-arctic-hunters >.
  • 9. Pictures Credits
    • http://screensavers-hq.com/?p=9
    • http:// www.komar.org/faq/churchill_polar_bear_tours /
    • http://gs.riverdale.k12.or.us/~samanthas15/
    • http://www.seaworld.org/infobooks/PolarBears/pbhabitat.html
    • http://www.warmingscaretactics.com/Polar_Bears.php
    • http://psp.88000.org/18__Funny_Polar_Bear.htm