Why do billionaires often lay many sons?

Many scientific studies show that billionaires have a son birth rate of 65% due to their attractive evolutionary advantages.

According to the BBC, history recorded a lot of efforts to select the sex of the fetus. In the Middle Ages, the husband was often advised to face the east while having sex or drinking red wine soaked in the rabbit uterus if he wanted to have a son. By the 18th century, French anatomist Procope-Couteau claimed to tighten the left testicle as a method of securing a son.

Today, a simple search operation can produce a variety of tips such as taking vitamins, syrup cough or even changing underwear. Reasoners agree that these tips are unfounded because conception is the same chance as a coin toss. The probability of a fetus being a boy or girl is purely 50/50.

However, in fact, the sex ratio has never been exactly 1: 1. There are 100 girls born every 109 girls. According to scientists, this difference is necessary.

President-elect Donald Trump has three sons and two daughters.(Photo: People).

Men often have weaker immune systems, high cholesterol levels, facing high risk of cardiovascular disease, diabetes, and cancer with low survival rates. The strong men also account for two-thirds of the victims of murder, three-quarters of those who died of traffic accidents and three times more likely to commit suicide than women. Therefore, the proportion of boys born is usually higher so that the number of surviving individuals ensures a balanced sex ratio.

Questions that challenge scientists

Studies show that extreme weather, Muslim holy month of Ramadan, morning sickness, are factors that make birth rates high for girls. In contrast, women have a strong personality, a rich carlorie diet (such as breakfast cereal) or marrying a president tends to have more sons. For billionaires, male birth rate is 65%.

Determining the probability of sex when conceiving is a question that confuses the scientific community for decades. This phenomenon is especially charismatic with Charles Darwin, who spends his time researching carefully the sex ratio of young animals in many animals.

In the animal world, males often have to go through more intense competition in search of partners and status.(Photo: iStock).

After the discovery process, Darwin believed that the complex formality of many males, such as the brilliant tail at work, was the result of the lack of a large number of heterosexual individuals. Accordingly, a high competitive advantage will help males stand out when competing for their children.

However, the problem he encountered was that all studied species had almost the same number of males and females (but not absolute). The difference is not as big as he predicted. Darwin gave up the topic because he could not find a convincing explanation.

"This problem is too complicated, so it's better for future generations to seek answers," Darwin once said.

In 1972, Robert Trivers, an evolutionary biologist and American anthropologist, began to pay attention to Darwin's topic.

"I have found the idea worthy to devote my life," Trivers said. With his partner Dan Willard, Trivers developed one of the famous evolutionary biology theory of Trivers- Willard.

This theory assumes that people can choose the sex of their fetus and the game poses how to have as many descendants as possible. If the baby is a boy, it is likely that this boy will become a billionaire or president, with a lot of girls to choose from.

Science proves that people with high social status often have great attraction to women. Women with good fertility are often attracted to prominent, wealthy and influential men who tend to marry early and are more likely to have outside marriages. people of the same age. Thus, success in men is considered a great victory in terms of evolution. In the opposite direction, a man may not find a mate.

"Women tend to marry people of a higher social class. So if at the bottom of the scale, a guy can be quite struggling to find married people , " Trivers explained.

Meanwhile, women often do not face this fierce battle.

The mother has many children in the history of the world is an anonymous woman, wife of a poor farmer in Shuya, a town in western Russia, born in 1707 and died in 1782. According to records, she gave birth to 69 people baby

This number is nothing compared to Genghis Khan, the father of about 1,000 - 2,000 children. Recent DNA analysis shows that Genghis Khan is not the only man with many children. At least 10 men in history have left the number of descendants equivalent to Genghis Khan as a Chinese king (died in 1582) and the initiator of Ireland's Ui Neill revival.

In animals, Tibetan red deer, marine statues or chimpanzees, the number of children is much larger. Striking males have hundreds of sexual partners, while those with low status or weak health often do not reproduce or die while trying.

The next issue is resources. Due to their large appearance, men often consume more food than women. In many societies, this is also a higher demand for education and money. The parents of a boy often have to invest a lot if they want their son to become an excellent and successful man.

American billionaire Elon Musk gave birth to 6 children, all boys, with his first wife.A child died at the age of two months.(Photo: Celebfamily).

Summary of the above factors, Trivers affirmed, in favorable conditions, such as family status and abundance of food, standing on the aspect of evolution, parents have the ability to give birth more boys. However, in more difficult conditions, natural selection makes couples give birth to girls, because women do not face fierce competition like men. Even if they are not too charismatic or successful, at least they can still have children.

Sex balance

Trivers' theory was initially considered a joke but over 10 years later proved to be true.

In the 80s of the last century, scientists discovered in red deer, females with an advantage of up to 60% of male births. However, whether this number is true in humans. Scientists have found the first evidence from China.

In 1958, China implemented an ambitious "Great Leap Forward" plan , hoping to turn the country into an industrial power in several years.

Families are required to abandon farms when the government intends to increase steel output by 30%. The gardens turn into temporary ore yards, while the tools from the pan to the plow are brought to melt to increase the total output. After only a few years, China experienced horrific hunger because its grain production continued to decline with 45 million deaths.

40 years later, economist Douglas Almond conducted Chinese census with colleagues at Columbia University, USA. The research team analyzed data on people who were born immediately after the famine with the parents' native information. Some areas of China are more affected than others, whereby the team can compare the lives of those whose mothers are victims and not victims of hunger.

Genghis Khan may have between 1,000 and 2,000 children.(Photo: PA).

Accordingly, although not directly experiencing hunger, people from families are less likely to be educated, find work hard to support themselves and tend to live in small houses. Mothers experiencing hunger have high rates of first-born girls and this effect seems to continue on to children.

It is estimated that in the period of 1960-1963 in China for every 100 girls born, there were 104 boys while the world average was 100/109. This rate only returned to normal milestones in 1965.

The answer to the question of why the sex ratio never goes beyond the 1: 1 threshold despite the harsh conditions after the Great Leap Forward in China, ecologist Keith Bowers offers many reasons.

"Boys need more food than girls, so if you continue to have a lot of boys, it will create a competitive environment in your family , " Bowers said.

On the other hand, if all families give birth to a son in an advantageous period, the number of men increases making them more difficult to find their partners and places to live. Meanwhile, the advantage will be in favor of girls.

"Therefore, over time the sex ratio will return to a balance , " Bowers concluded.