Polar Bear

by Nathan Seo

Description

  • Carnivore
  • Mammal
  • Covered in fur
  • Male: 410kg female: 320kg
  • Twins are most common; occasionally singlets and triplets
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Habitat

  • Arctic region
  • Main habitat is on offshore pack ice
  • When summer, polar bears travel miles to remain on ice
  • Long cold winters
  • Short mild summers
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Adaptations

  • Thick claws
  • Tough teeth
  • Skin under fur is black
  • Small rounded ears
  • Thick layer of fat under skin
  • Small body parts to prevent heat loss
  • Good at swimming
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Food Chain

  • Top of the food chain in the Arctic
  • Seals are their primary food
  • Also eat walrus, birds, bird eggs, beached whales, and even kelp
  • The only thing that can beat a polar bear is another polar bear



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Reason for Endangerment

  • Industrial impact
  • Global warming
  • Pollution
  • Slow reproduction rate
  • Hunting; may not be a problem if regulated


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Critical Information

  • 2/3 of polar bears can disappear by mid-century
  • In 2005, polar bears were classified as vulnerable
  • In 2008, polar bears were classified as endangered
  • Rapid loss of sea ice is their major threat


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Most of this information came from parenthetical reference: EPB

work cited

"Polar Bear." National Geographic. Web. 30 May 2012.<http://animals.nationalgeographic.com/animals/mammals/polar-bear/>. (NG)

"Polar Bear." Polar Bear. Web. 30 May 2012. <http://endangeredpolarbear.com/>. (EPB)

"Polar Bears International." Polar Bears International - Polar Bear Research - Polar Bear Education. Web. 30 May 2012. <http://www.polarbearsinternational.org/>. (PBI)