Today, most live-born Western infants survive fatal infections as well and reproduce themselves, regardless of their intelligence and the genes they bear.
That is, natural selection promoting genes for intelligence has probably been far more ruthless in New Guinea than in more densely populated, politically complex societies, where natural selection for body chemistry was instead more potent.
Note: explains a lot
Easter Islanders turned to constructing chicken houses for intensive poultry farming.
Note: chicken for dinner every night
were waiting ready, hidden in a courtyard, full of fear. Many
Note: havent seen that chronicled yet