Overview:Travel back in time to look at three of the largest mass extinctions that have decimated life on the planet. What caused these wipeouts?
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First Air Date: Sep 15, 2004Last Air date: Aug 25, 2011Season: 8 SeasonEpisode: 129 EpisodeRuntime: 60:45 minutesQuality: HDIMDb: 3.3 / 10 by 6 usersPopularity: 2.1303Language: en
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