Catastrophe
Season 1 • Episode 5: Survival Earth • Watch with subtitles
Episode 5: Survival Earth
December 22, 2008 • 60 min
So far, humans have been lucky to not experience a catastrophe on a global scale. Though they are the most powerful species on this planet, it's easy to forget that the forces that wiped out many successful species in the past are still at work.
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