Back in he '70's I studied cultural anthropology in college. One of the tribes we studied lived in South America. They were still true hunter-gatherers. There was an interesting documentary. While the men were out hunting, the women and kids were out foraging for food or processing cassava roots into tapioca flour for bread. The men managed to bring down a single howler monkey with poison darts. This was devided between the whole hunting party. The majority of the calories came from the cassava and foraged greens. Afterwards, everyone lay around in hammocks and got stoned on homemade dope and booze. Not a bad life, actually.