Monthly Archives: January 2013

Group Selection (and homosexuality)

You can imagine situations in which natural selection would favor an increase in frequency for a trait that aided group survival while hurting individual reproductive success – but it’s not all that easy. Here’s the problem: imagine a situation in … Continue reading

Posted in Homosexuality | 137 Comments

Paternal Age and Homosexuality

There’s something interesting about the paternal age effect in homosexuality – apparently there isn’t one. It certainly exists for autism, schizophrenia, manic-depression, and mental retardation, which suggests that de novo mutations play an important role in all of them. But … Continue reading

Posted in Homosexuality | 119 Comments

War Before Civilization

When you think of war, you usually think of organized states, or at minimum peoples with moderately sophisticated modes of production, agriculturalists or pastoralists. But hunter-gatherers manage as well. Not just war, but decisive war, the kind that that obliterates … Continue reading

Posted in European Prehistory | 20 Comments