The fact of the matter is O type is the most common, and if O negative is the universal donor type, this means obviously it is the first type and purest. We already know CUT THE CRAPPY STUFF BLAH BLAH BLAH do this. You have killed us by the billions, but did not overstand the science we are the 3rd sun or the solar plex or sol, soul .. you destroy us, you destroy the planet.... the gig is up peace....Oh BTW I will not debate with any of you. I love all of my children