Strange sex change

At the end of his life, in the French emperor Napoleon appeared many manifestations of femininity while the characteristics of men decreased: Beard disappeared, high-pitched voice, mammary gland developed .

According to the ancient books recorded, in the 13th year, Wei Jiao Wang of the Warring States Period (306 BC), Wei had a case where his daughter turned into a boy. Medical history suggests that it is the earliest known phenomenon of sex variation.

The remote Las Salinas village of the Dominican Republic was astonished when 38 residents there were women at birth, and at puberty suddenly turned into men. An expert at the Atlanta National Health Center said: "This is a rare phenomenon of gender variation occurring under special conditions."

The specialist doctors were sent to this small village to find out the cause. After many years of research, two American doctors concluded that the 38 people mentioned above were born in a chromosomal condition that caused a deficiency of male hormones. Therefore, the bodies of babies initially develop into girls but in fact they are boys. Until puberty, new male sex hormones begin to flourish, making them transform and 'return to themselves'.

Emperor Napoleon.(Photo: Ucdavis)

These patients can only produce about 40 million sperm while in normal men it is 500 million. Most of them are married as ' husbands ', only 2 people still live as true women.

French Emperor Napoleon Bonnapas was a true man. However, American scientist Robert and some scholars after analyzing physiological characteristics at the death of Napoleon (based on the memoir of the servant officer) drew the conclusion: The emperor is also victims of gender variability.

This is because on the last days of his life, the secretion of the testicles, which produce male hormones, is severely impaired, making the male sex characteristic weaker. On the face of Napoleon no longer beard, high-pitched voice, thick layer of fat beneath the skin made his body fat, developed mammary glands, long hair .

Recently, the press has been talking again in the UK with a couple married after 5 years and gave birth to a baby girl. Do not understand for what reason that both suddenly mutated gender, his wife turned into husband and husband turned into wife. In Zhejiang, China has a two and a half-year-old nephew who mistakenly took 18 of her mother's contraceptive pills (which contained a sizeable amount of female hormones) that gradually became a girl .

Animals also change gender

Not only in humans, animals also have gender variation. In 1985, in the University of Wiirzburg laboratory, two German biologists Ulmar Gart and Eduard Lisenmair discovered an interesting story: 10 Kenyan frogs that the two breeders, including 5 male frogs, 5 female frogs, after coping with each other and producing dozens of baby frogs, have shown signs of gender change.

To verify suspicion, they put four female frogs together with other fertile offspring. Soon, another generation of completely normal baby frogs was born. This strangeness surprised the scientists, because they had never suspected where similar reports were.

In fact, sex change is a very common phenomenon in invertebrate species such as snails, earthworms . and even in some vertebrate species such as fish. Saclo fishes in the Gulf of Mexico are masters of ' sex change ' magic. They can even transform ' at will '.

Normally, we work in small groups. A male fish plays the role of a wife for the concubines of 6-7 females. The fishes are divided into ' throne ' according to their size and size. When the male leaves or dies, the largest female replaces the role of leader. And to maintain the race, the female head begins to change sex. The incident is repeated as if the new fish had left or died.

A case of sex variation in birds has been recorded at Nanning Zoo, Guangxi Province, China. In 1976, the zoo imported a peacock from Gansu, half a year later it laid eggs. 10 years later, it suddenly turned into a stately ' dude ', tall body, colorful fur, loud squeals, rough personality, often attacked girls serving in the zoo and chasing after the girls.

Why do animals and humans have such strange sex mutations? Scientists have worked hard on research, giving many analytical and speculative ideas. This variation is not only due to sex chromosomal disorder but also from many other causes, it is still a completely unexplored mystery.

Recently, scientists said that it is very likely that the phenomenon of men turning into women and vice versa are at risk of widespread, the consequences of using foods such as pork, beef . feed with food containing growth hormone. Those substances that enter the human body cause a dangerous mutation in the hormonal system.