If you asked them what life was like in prehistoric times, most people would conjure up an image like the famous opening scenes of 2001: Space Odyssey – groups of hairy savages grunting and jumping around, foaming at the mouth with aggression as they bash each over the heads with sticks. We take it for granted that life was much harder then, a battle to survive, with everyone competing to find food, struggling against the elements, men fighting over women, and everyone dying young from disease or malnutrition.
A whole branch of science has grown up around this view of the human race’s early history. This is relatively new discipline of evolutionary psychology, which tries to explain all of the negative sides of human nature as adaptations which early people developed because they had some survival value
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