If one tribe's men kills all the men in the other tribe, that's double the numbe...

		energy123 44 days ago \| parent \| context \| favorite \| on: Chimpanzees in Uganda locked in eight-year 'civil ... If one tribe's men kills all the men in the other tribe, that's double the number of women, and double the number of children. A large, permanent improvement in genetic fitness. Not temporary at all.