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“Polar Regions”

Apr 16, 2013 04:50 AM ET // Tim Wall
Alaska State Troopers believe a boy died after falling into a hole in a glacier, known as a moulin. A moulin forms when melt water on the surface of a glacier eats a hole into the ice. ->
Feb 5, 2013 05:12 AM ET // Larry O'Hanlon
Two scientists rafting down an Arctic river in Alaska discovered an almost complete 40,000-year-old steppe bison skeleton with DNA-rich hair and tendons still attached. ->