What will humans look like after a million years?

How will our grandchildren be formed in the distant future? Will it act of humans pulling their power from sophisticated electronic additions covered by their bodies? Will their members regain growth if they are amputated or shaken, and do their eyes become like cameras, as seen in science fiction stories?

Do humans become a hybrid between natural and industrial? Are we getting smaller or bigger? Do we become lean or fat, do our facial features change, or does our skin take on a different color?

Of course, there is no way to be sure to answer such questions, but we can hypothesize a million years back to see how humans were at the time.

At first, Homo sapiens, known scientifically as Homo Sabian, did not emerge a million years ago. There were probably several human species, including the Heidelberg man, who was shared by the "right man". And the modern man, although more primitive than the next Neanderthal man.

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Afterwards, ten thousand years ago, humans had to adapt to enormous changes. The spread of agriculture and the availability of food have led to health problems that science has helped to solve, such as insulin therapy.

With regard to external appearance, humans have become more obese and have grown up in some areas.

So, we can evolve to become smaller so that our bodies provide the energy they need in a densely populated world, according to Thomas Maylund, professor of biomedical data analysis at Aarhus University. , in Denmark.

Humans will have to adapt to a new variable whose environment is filled with other human beings. In ancient times, when humans depended on hunting and harvesting, their day-to-day contact with other humans was limited and Maylund believed that humans could develop to help them cope with this change. They can develop the ability to remember more names of other people.

"The implantation of a foreign object into the brain would help us retain more human names," says Maylund, "and we were able to identify the genes responsible for brain development so as to memorize the names, and we can also modify these genes, Scientific, but scientifically feasible for the moment. "

"We may be able to plant genes, although we can not activate them, but we are doing it and many tests are needed," he said.

He adds that biological knowledge is already available and remains to find the necessary technology to activate it.

In the meantime, some organs or devices are implanted out of the body, including the implantation of a pacemaker or a detailed implant, and perhaps in the future, of Other elements are planted to enhance a person's abilities, such as expanding the field of brain implants, as well as other additives such as artificial eye implants with a camera that can capture colors And different optical frequencies.

We have often heard of the possibility of selecting future genes for the newborn. Today, scientists have the necessary technology to modify embryonic genes, but this remains controversial and if we go ahead, we do not know how things are going to happen.

But Mr Maylund believes that the outlook may change in the future, so some genetic changes may be immoral. In this context, people can choose the characteristics of their children and children will be trained according to the wishes of their parents.

"Maybe things are going to look for traits in humans and we're doing hybridization of dogs," Maylund said.

In addition to assumptions, can we infer from population trends what humans might be in the future?

"We certainly can not predict exactly what will happen a million years later," says Jason A. Hodgson, a speaker specializing in environmental challenges. "However, if we approach the immediate future, prediction is possible by analyzing the essential evidence and integrating our current knowledge about genetic diversity and trends in demographic change." He said.

Today, scientists have genetic samples of a complete genome sequence from around the world, and genetics has become a better understanding of the genetic diversity of populations.

We can not totally predict how genetic diversity is going, but scientists in the field of biochemistry rely on demographic changes to get results.

"All migrations go from the countryside to the cities, so we expect greater genetic diversity among urban dwellers and less rural populations, so there may be geographic disparities," predicted Hodgson.

Things are not going to happen the same way around the world, but in the UK, for example, rural areas are less diverse and have a longer-term population than urban areas, which have higher proportions. than those of other regions of the world.

Reproductive rates vary from one population to another: for example, in Africa, the number of people is growing rapidly and their genes are more widespread around the world, while fair-skinned people are growing at a rate further down, Hodgson predicts that the skin of the world will darken.

"It is almost certain that dark skin is growing overall compared to fair skin, so I expect humans to have on average more generations of delay than they do today. "Hey," he said.

What about the space? Will humans eventually colonize Mars? If so, how will man develop in the environment of the new planet? With less gravity on Mars, the shape of the muscles can change in the human body and our arms and legs can lengthen.

In a colder environment similar to that of Earth in the Ice Age, does a person become too excited to keep his body warm, as was the case with the Neanderthal man?

In fact, we do not know, but the genetic diversity in humans certainly increases. Hodgson says that overall, there are nearly two new migrations for each of the 3.5 billion base pairs of the human genome each year, which is staggering, so it is unlikely that we will stay the same after Millions of years.

You can read the original article from BBC Earth

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