2015年8月28日 星期五

polar bear, 北極熊

This U.S. Coast Guard photo shows a polar bear observed off the stern of Coast Guard Cutter Healy, while it is underway on a mission in the Arctic Ocean in support of Geotraces. Geotraces is Healy's second science mission of the summer, and is an international effort to study the distribution of trace elements in the world's oceans.
August 24, 2015
http://www.voanews.com/media/photogallery/august-24-2015-day-in-photos/2930406.html
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