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245			_aWhat Really Killed the Dinosaurs?
300			_aFor more than 150 million years, dinosaurs dominated Earth. They were so successful that other animal groups - mammals included - had little chance of playing anything more than secondary roles. Then, 65 million years ago, the dinosaurs vanished from the world forever....
650			_xScience.
856			_uhttp://topdocumentaryfilms.com/what-killed-dinosaurs/
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