Explores the reasons behind the extinction of prehistoric predators the saber-toothed cat, the short-faced bear, and the dire wolf. ARTIST : ARTIST NOT PROVIDED BRAND : NATIONAL GEOGRAPHIC GENRE : TELEVISION: NATIONAL GEOGRAPHI MANUFACTURER : NATIONAL GEOGRAPHIC/VISUAL ENT PRODUCT TYPE : DVD PRODUCT TYPE : DVD RATING : NR RATING : NR RELEASE DATE : 12-FEB-2008 RETURNS ACCEPTED? : YES RUNTIME : 135
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