Holocaust/genocide/massacre; these are the only characteristics specific to humans. We have never seen such heinous act performed by any other member of the Animal kingdom. Some animals (predators) kill some other animals (sometimes own offsprings) for the shake of food but we have seen several examples (Hitler, Saddam, Polpot, and several others) where thousands of fellow human beings met a predetermined and well planed mass killing. What makes some of us to perform genocide? What do u think?