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This Aug. 3, 2011, photo provided by Mida Swan shows an orange colored substance that washed ashore in the village of Kivalina, Alaska, a village on the state’s northwest coast about 625 miles northwest of Anchorage, Alaska. The Coast Guard says the substance is not man-made and might be some type of algae. Further tests will be conducted. (AP Photo/Mida Swan)

Orange goo in Alaska

Scientists have identified an orange-colored gunk that appeared along the shore of a remote Alaska village as millions of microscopic eggs. (AP)