Variation (2) société (humaine) (1) raffinage (1) productivité (1) marché (1) histoire (1) analyse (1) évolution (1) âge (1) Instruction and study (1) Testing (1) Context (1) History (1) Adaptation (1) Forms (1) Rates (1) Women (1) Testing (1) Societies (1) Measurement (1) Life (1) Learning (1) Hunting trophies (1) Hunters (1) History (1) Finance (1) Fertility (1) Farmers (1) Evolution (1) Evidence (1)