The answer is “I don’t know”. There has never been an official study done as far as I know. All we have to go by is indications and then decide to either follow it up with a study or let it rest until we get more information. One of the myths that has been proven wrong was the claim that the Neanderthals were rh negative. “… both are homozygous rhesus positive.” was the reply from the Max Planck Institute to my question about the blood types of the two Neanderthal specimens they have examined. So when it comes to the Neanderthals we were looking in the wrong direction and the biggest mistake that people have made was to spend time … Continue reading Were the Cro-Magnons Rh Negative?