Science - Your Genes: More Virus Than Human Season: 1

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Published 25 Jun 2011
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You have already voted for this video. Science Season: 1 Episode: 37 Viruses make up "about 8 or 9 percent" of our genome, notes science journalist Carl Zimmer. Zimmer explains how viruses throughout history have affected human evolution -- and, in fact, continue to affect us every day.
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