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Is consanguineous marriage necessarily harmful? Historically, consanguineous marriage

As we all know, the offspring produced by inbreeding have a large proportion of congenital defects, either deaf or dumb, dead or injured. It has caused unpredictable and serious consequences for parents and future generations. But is consanguineous marriage really like this? Answer: No, many celebrities at all times and all over the world are married by close relatives, and many of their descendants are lucky.

The great poet Lu You and his wife Tang Wan have been cousins since childhood.

Wang Xianzhi, the son of the great calligrapher Wang Xizhi, and his wife Xi Daomao are standard cousins.

Sister Lin, the love of Jia Baoyu's life, is the daughter of his aunt and his menstrual period, and finally married Jia Baoyu.

A generation of outstanding scientist Einstein, his wife is his cousin Elsa.

Morgan, the most famous geneticist in America, married his cousin Mary.

Li Ka-shing, a wealthy Hong Kong businessman, is a cousin with his wife, Zhuang Yueming.

Among them, the famous evolutionist Darwin is the most typical. His wife and he are cousins, but their six sons, except one who died young, three of the other five are members of the Royal Society, and the fourth one was appointed as a royal engineer. There are also duplicate names in society. Only the eldest son is inferior. Experts believe that this is caused by physiological genes. Because on Darwin's side, his grandfather, father and himself are members of the Royal Society, his wife's grandfather is also a member of the Expert Society, and his father-in-law is a famous pottery expert. The combination of these two lineages will naturally produce good offspring.

Besides, there are countless such examples. As Marxist philosophy says, contradiction has two sides. Many geniuses are also patients. Hawking, for example, is a genius in astrophysics, but he is completely paralyzed. For example, Zhou Zhou is a gifted conductor, but he has mental retardation. Some people say that God is fair, but what is fair is not God, but the great nature and mysterious gene pool.