Petty Officer 2nd Class Charles McAllister, a machinery technician aboard Coast Guard Cutter Healy, stands bear watch Sept. 16, 2015. The bear watch's duty is to keep a lookout for any polar bears in the area while scientists and crew members are working on the ice. Healy is underway in the Arctic Ocean in support of the National Science Foundation-funded Arctic Geotraces, part of 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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Keywords: arctic, bear, coast, geotraces, guard, healy, icebreaker, ocean, watch