Violence and kinship obligations are linked in Yanomamö tribal warfare
In short: Researchers studying the Yanomamö Indians of Amazonas over 23 years found that violence is deeply intertwined with kinship and reproduction. The study observed that nearly 70 percent of adults over age 40 had lost a close genetic relative to violence, and that approximately 30 percent of adult male deaths were due to violent acts.
This research suggests that homicide, revenge, and warfare are connected through complex social and reproductive patterns. By examining life histories, the study found that men who have participated in killings tended to have more wives and offspring than those who had not.
Because this was an observational study of a specific population, the findings show associations rather than direct causation.
Why it matters: Violence in this society is closely linked to kinship ties and reproductive outcomes.
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Sources
- Summary by Intellect · source: Research: Chagnon (1988). Life Histories, Blood Revenge, and Warfare in a Tribal Population. Science.
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