I'm rather surprised that he has made no mention of Marvin Harris, who has studied culture and war extensively, including the case of the Yanomamo. Their way i

I'm rather surprised that he has made no mention of Marvin Harris, who has studied culture and war extensively, including the case of the Yanomamo. Their way is warlike because they have their roots as "foot" indians, and over-hunted animals in the forest, and their farming practices are primitive and very deficient in protein. The resulting collapse of animal protein sources created a longstanding ecological pressure leading to the cycle of high female infanticide and war. And since they've already passed beyond the point of ecological replenishment, they can't break out of it. They actually have two words for hunger: One denotes an empty stomach, and the other a full stomach that craves meat.