> Though, and you hinted at > it, I suspect in these cultures (probably without exception??) that another > woman would take over feeding the baby. > Surely, though they would have a 5% infertility rate - and that hasn't made > a big impact on human population growth. > > Just totally unsubstantiated musings from > Denise This makes me muse further: what if indeed all these babies would be nursed by other wonen (which indeed will probably be the case), then the birth-mother would become pregnant sooner, have more babies alltogether, more babies alive (?), so *more* chances of passing on the genes that count for lactation insufficiency on to their offspring? Or do I miss something? Or is primairy lactation insufficiency not inherited but merely a bad-luck variation? Just wondering. Gonneke van Veldhuizen, IBCLC, Maaseik, Belgium http://www.users.skynet.be/eurolac [log in to unmask] *********************************************** The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(TM) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html