foragers believe that life does not begin until, usually, the age of two. Foragers look at infanticide much the same way we do abortion. Among the !Kung, a pregnant woman goes into labor, and walks off into the bush (I’m told that childbirth is significantly less an ordeal among those who are not malnourished — affluently or otherwise). Maybe she comes back with a child; maybe she doesn’t. Either way, no questions are asked. So, our calculations of forager lifespans are quite unfair — if we’re going to include their infanticide, then we must include our own abortions. To do otherwise would simply be ethnocentric. In fact, when we do that, we see that forager lifespans are as long as, and sometimes longer, than our own.