The “Dicsussion” section of one study showing no Neanderthal y-DNA present in today’s population also theorized that the reason for it could have been fertility issues between Neanderthal males and human females. They then continued that had there been children between Neanderthal men and human women, offspring would have likely been sterile. I have looked for evidence just in case I have overlooked something, but there isn’t any I am aware of. However, this theoretical explanation has been turned into a headline by several scientific publications and is now stuck as a fact in the back of the minds of many who have read it. It is true that so far no current y-DNA haplogroup in humans can successfully be … Continue reading The history of gender-specific extinctions