War is a bug in human evolution, I think, and happened pretty short ago, 'bout 70.000 - 250.000 years ago, when the human brain started exploding. Cannibalismn went along with it.
Human babies are the only youngsters of a species who are naturely afraid of an individual of the same species, I read that in works of Konrad Lorenz. All of our culture is built on this bug. MattisManzel 22:12, 12 Mar 2005 (CET)