同类相残POLAR BEAR AND GLOBAL WARMING 伊安•威廉姆斯 2010-03-23 19:28:11
A male polar bear carries the head of a polar bear cub it killed
and cannibalized in an area about 300 km (186 miles) north of the Canadian town
of Churchill in this picture taken Novembe
r 20, 2009. Climate change has turned
some polar bears into cannibals as global warming melts their Arctic ice hunting
grounds, reducing the polar bear population, according to a U.S.-led global
scientific study on the impacts of climate change.
同类相残 POLAR BEAR AND GLOBAL
WARMING
2009年11月20日，在加拿大丘吉尔镇以北约300公里的地方，一头雄性北极熊咬着一直小北极熊的头。随着气候变暖，北极熊的食物来源匮乏，同类相残越来越普遍。
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