mercoledì 24 dicembre 2014

NYT Science: White? Black? A Murky Distinction Grows Still Murkier

White? Black? A Murky Distinction Grows Still Murkier
By CARL ZIMMER

There is a long tradition of trying to draw sharp lines between ethnic groups, but our ancestry is a fluid and complex matter, geneticists say.

Published: December 25, 2014 at 06:00AM

via NYT Science http://ift.tt/1CBRTyv