Regulation of Chinese marriage law is near be not to allow to marry, the offspring that basically considers intermarriage suffers from the probability of transmissibility disease to increase. Nevertheless, this does not mean the children of intermarriage to give an issue with respect to regular meeting. Just think, past world each district advocates generally to go up in person add close, didn't the mankind also create thousands of much bright culture? Mention the harm of intermarriage, a lot of people like to take " change talked father nearly " Darwin is exemple, because Darwin is right,say genetics acknowledge is insufficient, the marriage with the Emma that express elder sister although feeling is perfect, but the result is agonized however. After marriage, emma was born 6 male 4 female, however neither one child is healthy: Two big daughters were not brought up to die young, 3 daughters and two sons are lifelong not Yo, the child of the others also serious illness pesters a body, intellective and low. I once pursued inchoate education research, still compare understanding to Darwinian circumstance. Darwin and Emma are intermarriage truly, there are 3 to die young in 10 their children also is a fact, but these a few children die young the evil consequence that saying is intermarriage is pure belong to far-fetched. As to the child that says Darwinian the others also " serious illness pesters a body, intellective and low " , it is a bullshit more. The life in them is the briefest lived 67 years old, life is the longest lived 93 years old, and each career has, having two among them still is England royal academician, be equivalent to now Chinese academician. As to 3 children that Darwin dies young, big daughter dies at tuberculosis when 10 years old, 2 daughters lived only 3 weeks, young son dies at scarlet fever when 2 years old. Be in actually that times, children dies young rate is very high. The England at that time, about 1 ／ the baby of 5 fails to live to be 1 year old. Scarlet fever, tuberculosis, it is at that time the disease with infant extremely high mortality. Somebody may think, probably Darwin is atavistic, grandson does generation have a problem? The answer still is denied. In Darwinian grandchildren, have sports writer, artist, poet, only a grandchildren that calls Charles is engaged in studying scientificly. Charles division is mixed from blessing of Lu a twenty-five-stringed plucked instrument Bo Er, it is famous physicist, director of laboratory of British country physics is held the position of during the Second World War. Say so, intermarriage can increase the probability that certain and hereditary disease produces, but do not be equal to actual condition inevitable and such, more unfavorable the tragedy that is a demonstrative intermarriage with Darwin, otherwise outsmart oneself.