In order to understand how warfare and violence have shaped the natural history of our species, and perhaps favored adaptations that respond to this important life threat, we need to document what types of violence were common in our ancestors and what were the levels of violent death in the past. Observation of modern hunter-gatherers, who live under conditions similar to our ancestors, provides an important source of information. Kim Hill (Arizona State Univ) studied the death rates of two hunter-gatherer tribes, the Aché of Paraguay and the Hiwi of Venezuela, and discusses his findings in this talk. Recorded on 05/16/2014. (#28351)