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Watch NOVA Season 8 Episode 8 Online

  • 6.9/10
  • COUNTRIES: United States of America
  • Subtitles: English

For 150 million years, non-avian dinosaurs dominated the Earth. Then, 65 million years ago, they suddenly vanished, along with a great deal of the planet's animal and plant life. NOVA examines a remarkable theory about the cause of the catastrophe—in which the first clue to the solution was a piece of clay.