Encyclopedia of Global Warming &amp;amp; Climate Change

S. George Philander

doi:10.4135/9781452218564

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Polar Bears

Edited by:
S. George Philander
In:Encyclopedia of Global Warming & Climate Change
Chapter DOI:https://doi.org/10.4135/9781452218564
Subject:Climatography, International Environment, Environmental Sociology
Keywords:polar bears

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The polar bear (Order Carnivora, family Ursidae) is the largest bear species and is thought to have evolved from brown bears, Ursus arctos, approximately 1 million years ago. There are 19 recognized populations distributed in Canada, the United States (Alaska), Norway ...

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  Philander, S. (2012). Polar bears. In Encyclopedia of Global Warming & Climate Change ( 2 ed., Vol. 3, pp. 1114-1116). SAGE Publications, Inc., https://doi.org/10.4135/9781452218564
  
  Philander, S. George. "Polar Bears." In Encyclopedia of Global Warming & Climate Change, 2nd ed.edited by Philander, S. George, 1114-16. Thousand Oaks, CA: SAGE Publications, Inc., 2012. https://doi.org/10.4135/9781452218564.
  
  Philander, S. 2012. Polar Bears. In: Encyclopedia of Global Warming & Climate Change. S. George Philander Editor, 2nd edn, Thousand Oaks, CA: SAGE Publications, Inc. pp. 1114-1116 Available at: <https://doi.org/10.4135/9781452218564> [Accessed 8 Dec 2023].
  
  Philander, S. George. "Polar Bears." Encyclopedia of Global Warming & Climate Change. Edited by2nd ed Vol. 3. Thousand Oaks: SAGE Publications, Inc., 2012, pp. 1114-16. Sage Knowledge, doi: https://doi.org/10.4135/9781452218564.
  
  Philander, S. George. Polar bears. In Encyclopedia of Global Warming & Climate Change. Vol. 3. 2 ed. Thousand Oaks, CA: SAGE Publications, Inc.; 2012: 1114-1116. doi:10.4135/9781452218564
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