Our species is between 100 and 150 thousand years old. In that time we’ve made more progress taming the instincts of carnivorous canine and feline pack animals than our own. Why are we still so territorial? So hostile toward members of our own species whose only differences from us are physical appearances and culturally- and geographically-conditioned adaptations? Episcopal priest Matthew Fox says that as a species we are extremely dangerous and our tribalism is eating us alive. What roles do gender issues play in tribalism?