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History NOW: Sean Gulick Drills Into the Dinosaur-Killing Crater

By Spiral Education 05 Sep 15:14
history history channel history shows history channel shows full episodes episodes clips original series sneak peeks history now extinction Sean Gulick dinosaur crater historynow making history earth science drilling asteroid dinosaurs craters explosion evolution universe chemistry planet PLob1mZcVWOagDhCklgw1cGBw_NZNDISos PLob1mZcVWOaiAKzL5R9yXrwJqkuBZmPm_ PLiRuBL_i3RtLaBWYbAusGrgyi0qslmJVf Display all tags
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