自然界的演化以混沌初开为起点,斗转星移,沧海桑田,物竞天择,适者生存,在自然演化史中,人类创造了自己的生存形式和社会模式。在人类进化的初级阶段,繁衍后代是产生家庭的一个极为重要的原因,同时,也是一个物种得以延续和壮大的最基本条件。这种与低级动物无异的生殖行为以及由此衍生出的血亲关系导致了原始婚姻和家庭制度的产生。在历经了群婚等原始婚 The evolution of nature starts from the beginning of chaos, turns the starry and becomes full of sea and sky, natural selection and survival of the fittest. In the history of natural evolution, mankind has created its own form of existence and social model. In the early stages of human evolution, the multiplication of offspring is an extremely important reason for the generation of families. At the same time, it is also the most basic condition for the continuation and expansion of a species. This reproductive behavior, which is no different from that of lower animals, and the resulting kinship relationships lead to the birth of the original marriage and family system. After the group wedding and other original marriage