I like to go back in history as far as possible to determine whichever ancestries specifically are responsible for high Rh- frequencies.
For example:
It doesn’t interest me as much what blood types the “Cro-Magnons” had as they themselves were hybrids.
Did their presumed Rh+ frequencies come from the Neanderthals?
For the same reason it is of interest to me to look back at the history of the Berbers:
It is entirely possible that they once had high frequencies of Rh- blood still showing up in more isolated groups while most due to invasions show much lower percentages.
It is also possible that Rh- blood flown in via Jewish migrations.
I will continue with this later as new information comes my way…
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