Franz Wertvollen. The vaccine Idiocracy (№ 402546)

One of the reasons of human warfare is fear. This "I'm scared of you". Xenophobia.
And this is a very cool show of a chimpanzee. That is, chimpanzees will fight to destroy each other, even when they have a lot of resources and a lot of food, simply because they are afraid of each other. Because it's two different tribe, who can each other to misunderstand. And this one misunderstanding, the General need to take and understand, including the brain, to understand someone else, is such a horror, such aggression that they would rather each other to rape and devour, you make this extra effort as something in each other to understand.
And if humanity has managed to differ from other apes, it is due to the fact that some strange mutation, random mutation, random combination of chemical elements in the blood on certain days of human monkeys were able to be to each other a little less aggressive than chimpanzees.