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We met our Doppelgängers and discovered we had more than our looks in common! Scientists find that men and women who look alike also share similar DNA and behaviors such as smoking and education
[Daily Mail, where America gets its news] How small IS the gene pool?
Supposedly at one point there were only about 1,000 Homo sapiens, all living in the shadow of a mountain in Kenya or something. In other words, small — though not as bad as cheetahs...

Posted by: Skidmark 2022-08-25
http://www.rantburg.com/poparticle.php?ID=642223