What whales heard on 9/11 | How's Your Day?
On Sept. 11, 2001, four commercial airplanes in America are hijacked by extremists and crashed into the World Trade Center, the Pentagon and a field in Pennsylvania, becoming the most deadly and devastating terrorist attack in history.
On the same day, whale researchers off the Atlantic coast begin exploring a phenomenon that hasn’t existed for a hundred years.
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Originally published April 20, 2017.