自然选择还是社会选择：对于早期人类皮毛退化的探讨

Natural Selection or Social Selection: A Discussion on Degeneration of Human Ancestors’ Terminal Hair

摘要: 在人类皮毛退化的过程中，自然选择与社会选择都会发挥重要作用，随着气候、食物来源等若干自然因素的变化以及性选择与群体选择标准的改变，早期人类的体表毛发开始逐步褪去。自然选择机制能够促使早期人类更为有效地退掉体表毛发以更加适应外部自然环境的变化，而社会选择机制则能够帮助早期人类更加适应群体的生存环境、更加符合群体的文化要求。

Abstract: Natural selection and social selection can exert important influence on degeneration of human ancestors’ terminal hair. Terminal hair of human ancestor began to degenerate with the change of natural factors, such as change of climate and source of food, sexual selection, and standard of group selection. Mechanism of natural selection can promote degenerating process of human ancestors’ terminal hair so that they are capable of adapting to the alteration of external natural environment, whereas mechanism of social selection can help these ancestors to realign the selection manner and ensure individuals within the group can acclimatize the group’s existing environment and meet the group’s cultural requirement.