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NOVA - Season 8 Episode 8

NOVA - Season 8 Episode 8 - Documentary TV Shows 55:14. story about 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.

Released: Mar 03, 1974

Runtime: 55:14

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Networks: PBS

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