ABC News: Top Stories
Feb 07
|13:50
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What killed the dinosaurs? There is new evidence today, presented in the journal Science, confirming that they went extinct after an asteroid or comet hit the Earth -- a theory that has been questioned since it was first proposed in 1980.Read more http://feeds.abcnews.com/click.phdo?i=3f6700ac0c49e55a65d90af35d63d361
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