Scripps Institution of Oceanography scientist Joshua Jones (left) gives training on bowhead whales to watchstanders on the bridge aboard the Coast Guard Cutter Maple (WLB 207) underway in the Beaufort Sea, Alaska, on the cutter crew's historic voyage up through the Northwest Passage, July 22, 2017. The crew assisted Jones with zooplankton collection to analyze the abundance of the bowhead's food source. U.S. Coast Guard photo by Petty Officer 2nd Class Nathan Littlejohn.