 |
 |
 |
 |
 |
 |
HABITAT
The polar bear is a circumpolar species found in and around the Arctic Ocean whose southern range limits are determined by pack ice and having evidence of polar bears all the way across the Arctic. Population estimates are generally just over 20,000.Their main population centers are: Wrangel Island and western Alaska, Northern Alaska, Canadian Arctic archipelago, Greenland, North-Central Siberia.Their range is limited by the availability of sea ice that they use as a platform to hunt seal, the mainstay of their diet. The destruction of its habitat on the Arctic ice, which has been attributed to global warming , threatens the bear's survival as a species; it may become extinct within the century. Signs of this have already been observed at the southern edges of its range.
