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  • Kissing evolved to help humans choose mates, study saysadd to reading list  

    Posted on October 11, 2013 at 8:36 PM

    Sheril Kirshenbaum, a research scientist at the University of Texas at Austin, and author of "The Science of Kissing," talks to the "CBS This Morning" co-hosts about how kissing may be an indicator of long-term compatibility potential with a partner.


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