从猿进化到人,至今人类社会已经历了上百万年。在这漫长的历史长河中,社会发生了翻天覆地的变化,而生男育女这一规律却始终未变,因为这是种族繁衍的需要和本能,它使人类社会代代相传。对于男女性别之谜,古今中外无不感兴趣,研究从未间断。早在2,300多年前,希腊的大哲学家、医学之父希波格拉底第一次对性别的产生提出了见解。他认为来自母亲左侧卵巢的卵受精后,就会发育成女的;而右侧卵巢的卵受精 Evolution from ape to human, human society has gone through millions of years. In this long history, great changes have taken place in society. The law of male and female births has not changed since it is the need and instinct for the multiplication of human beings. It has made the human society spread from generation to generation. For the mystery of the gender of men and women, ancient and modern are all interested in, research has never stopped. As early as 2,300 years ago, Greece’s great philosopher, father of medicine Hippocrates for the first time made the opinion of gender. He believes that from the mother’s left ovary after fertilization of eggs, it will develop into a female; and the right ovary eggs fertilization