A polar bear is observed off Coast Guard Cutter Healy's stern, Aug. 23, 2015, while the cutter is underway 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. ( Coast Guard photo by Petty Officer 2nd Class Cory J. Mendenhall)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: arctic, bear, coast, geotraces, guard, healy, icebreaker, mendenhall, ocean, polar