Scientists make new discovery about Stone-Age sex

March 30, 2015 1:48 PM

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Scientists make new discovery about Stone-Age sex

This undated image made available by the NIH's National Cancer Institute shows the 46 human chromosomes. (AP Photo/NIH, National Cancer Institute, Hesed Padilla-Nash, Thomas Ried)

Scientists are puzzling over a new discovery regarding Stone Age sex: It seems that for every 17 women who reproduced at the time, just one man did the same.

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