Last Extinction

Run Time: 55 mins
Air Date: Tue, 31 Mar 2009
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PBSSeason 36 - Episode 14

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An examination over whether a comet struck the Great Lakes region 12,900 years ago, and whether it caused the extinction of such mega-creatures as the woolly mammoth and the saber-toothed cat in North America. Also included is the discovery of nano-diamonds which are created by heat and objects from space.