Far from providing immunity against evolutionary pressures, culture often creates new ones. For example, the genes associated with digestion of lactose are more prevalent in populations that have traditionally bred cattle and consumed milk.
但最近的研究却得出了相反的结果。文化不仅不能使人彻底摆脱进化的压力，反而会产生新的进化因素。比方说，乳糖消化基因更普遍地存在于一直饲养奶牛并饮用牛奶的人群中。