Scatological clues lead to an intimate view

The guys were all stressed out. There were new infants in the community, and the guys knew from experience that that's when invaders were likely to come and kill the babies, particularly the male infants. This annual threat was a defining moment in their lives -- it had more impact on everyone than the daily social struggle to be on top, or than any other community crisis, like defending the group against hostile neighbors. Nothing was more stress-inducing than having helpless infants around to protect from marauders.

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