In this Fall 2013 photo released Tuesday, Nov. 11, 2014 by the University of Alaska Fairbanks, professors Ben Potter, left, and Josh Reuther excavate the burial pit at the Upward Sun River site in central Alaska. (AP Photo/University of Alaska Fairbanks, Courtesy of Ben Potter)
Researchers have uncovered the remains of two Ice Age infants in Alaska's interior, a discovery archaeologists call the youngest human remains from that era found in northern North America.
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