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Polar bear eaten by shark: who's top predator?

Aug 13 2008, Amith

Already threatened by a thaw of ice around the North Pole, the polar bear’s title as the top Arctic predator may under challenge from a shark.

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Polar bear population seen declining

Nithya N, Mumbai

Two-thirds of the world’s polar bears will be killed off by 2050 — and the entire population gone from Alaska — because of thinning sea ice from...

Environment, Polar, Bear, Extinction

made popular Aug 12 2008

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Churchill:

A polar bear mother and her two cubs in Wapusk National Park on the shore of Hudson Bay near Churchill, Manitoba, are seen in this Nov. 6, 2007 file photo. The plight of the world’s polar bears in a warming climate is such a sensitive subject that...