NOVA scienceNOW

What Makes Us Human? Preview

Preview: Season 6 Episode 1 | 30s

Find out if you’re part Neanderthal, about the evolution of laughter, and more.

Aired: 09/11/12

Rating: NR

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Funding for NOVA ScienceNOW is provided by the National Science Foundation and the Alfred P. Sloan Foundation.

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