What route might have been followed by human ancestors who migrated from Africa to the rest of the w

In the ancestors of mankind.

On the question of origin, there are two concepts, the origin of the family and the origin of modern man. There is not much controversy in the academic community about the idea that the common ancestor of the Homonoids originated in Africa between 7 million and 5 million years ago. There are two hypotheses about the origin of modern man, and many scientists currently support the "African origin theory", that is, Africa is the homeland of modern man; A small number of scientists support the "multi-origin theory", which holds that modern humans originated in Europe, Asia and Africa.

Conventional theories have speculated that modern human ancestors may have migrated to the Middle East first.

and Central Asia, and then migrated to other parts of Asia and Europe. But the team's study of human mitochondrial DNA found that the ancestors of modern humans may have been along the Indian Ocean as early as possible.

Coastlines are migrating "out of Africa" and into the rest of the world, and they are migrating much faster than earlier estimates.

Another important issue is the timing of the exodus from Africa. At first, scientists analyzed and inferred that the time was about 100,000 years ago, but after a new round of analysis and research by scientists, it was determined that the time was 10,000 years, which was 10,000 years earlier than people had previously speculated. Genetic studies have speculated that Homo sapiens (i.e., modern humans) must have originated about 200,000 years ago, and this new finding coincides with genetic findings.

The re-revision in time allows scientists who support the theory of African origins.

There is all the more reason to believe that early modern people had more time to develop their cultural attributes.

Disperse them from the African continent to all parts of Asia and Europe.

One hundred thousand years ago, Africa's climate changed dramatically, grasslands and forests appeared, deserts appeared, and primitive humans left Africa to survive and migrated to the rest of the world.

The paleontological community currently basically believes that humans originated in Africa, and that the ancestor of humans was an African australopithecus named Lucy.

I don't think, I support the mutation theory!

I think the Duozu theory is stronger than the African theory!

But now Africa says it has the upper hand!

It's like saying that the sky was round and the place had the upper hand!

Everyone, pay attention, don't recognize ancestors indiscriminately, even if you are not sure, you can't say that humans recognize monkeys as ancestors, I will laugh, I don't know what everyone's opinion is, unless you see it with your own eyes, indefinite evolution is not anything,

The most popular view now is that humans originated in Africa. But I just can't take it for myself. The theory that humans originated in Africa is about 200,000 years ago, when the first ancestors of humans appeared in Africa.

About 70,000 to 50,000 years ago, about 200 Africans began to leave, arriving in Europe, Asia and the Americas. My first question was about the migration of 200 Africans, and I wondered, how long would it take for them to come to China? Because, they came to China for no purpose, and it was only by some chance that it was possible to explore China under some circumstances, or under natural conditions.

<> let's imagine that let's start with the arrival of 200 Africans in Arabia. Their first problem is survival. If they could survive in Arabia, they wouldn't have moved elsewhere.

Unless, of course, there are too many of them for local resources to support them. Let's see, what is their average age? According to the Pekingese, the average age of these 200 people was about 15 years old.

Even if these 200 people are slightly more intelligent than Beijingers, and the average age is slightly higher, even if they are 20 years old, so what? How fast is their population growing? Africa's population is growing at a rate of only 2 per cent.

The migration direction of these Africans also needs to be taken into account. It will not point directly at China, but it could be in four directions.

There are so many mountains and rivers on the way to China. Is it really going to be smooth sailing? This is conquest.

Along the way, these Africans may encounter local Homo erectus and a battle will take place. Will the conquest go well? For example, a war between Africans who landed in Chinese mainland and the native Homo erectus in China, and these Africans could sweep through Chinese mainland like storm clouds?

The ancestors of the Chinese seem to belong to the northern Mongols. It is said that 40,000 years ago, during the Ice Age, much of the Northern Hemisphere was still covered by huge glaciers. How easy is it to come to China and conquer China?

I remember that in Europe, Africa's immediate neighbor, there was also an ancient human species, Neanderthals, who lived until 17,000 years ago.

Africa is very difficult to deal with Neanderthals, so the ancestors of the Chinese, tens of thousands of miles away, separated by mountains, can't they be 10,000 years longer than Neanderthals? Is the genetic theory certain? I don't understand, but I wonder, is the connection between the two inevitable from ancient times to the present?

Is it unique? About reproductive isolation. The fact that people in the world, all kinds of people, can reproduce each other is not evidence of unique ancestors.

Just like today, pigs, horses, cows, and sheep around the world can also be crossed with each other. It's hard to say that bamboo horses, cows, and sheep share the same ancestor.

Although the "African origin theory" has both archaeological and molecular biological evidence, there are still a few scientists who question it, such as the paleoanthropologist Volbov and the molecular biologist Temple Preton, who still believe in the "multi-regional origin theory", that is, that humans did not come from Africa alone.

Actually, it evolved through apes, and I don't think it originated in Africa, but in Europe and North America.

Humans evolved from fish, and this has been confirmed, but I don't think it all originated in Africa, after all, Asia and Africa also existed at the same time.

For the first time, humanity has stepped out of Africa.

The scientific community generally believes that it was about 2 million years ago. For the second time, humanity has stepped out of Africa.

In the latest issue of the British journal Nature, Templeton reported that he studied the DNA sequences of inhabitants of different parts of the world, combining information from 10 regions on autosomes, sex chromosomes and mitochondria, comparing the differences in multiple genes and studying their mutation processes. He concluded that the departure of Homo erectus from Africa was followed by another wave of mass African migration between 400,000 and 800,000 years ago. For the third time, humanity has stepped out of Africa.

The third occurred about 100,000 years ago, and Templeton also found that there was a tendency to return from Asia to Africa after that.

The process of the three exodus of human ancestors out of Africa, the final result, and the names and basic characteristics of each race?

For the first time, humanity has stepped out of Africa.

The scientific community generally believes that it was about 2 million years ago. For the second time, humanity has stepped out of Africa.

In the latest issue of the British journal Nature, Templeton reported that he studied the DNA sequences of inhabitants of different parts of the world, combining information from 10 regions on autosomes, sex chromosomes and mitochondria, comparing the differences in multiple genes and studying their mutation processes. He concluded that the departure of Homo erectus from Africa was followed by another wave of mass African migration between 400,000 and 800,000 years ago. For the third time, humanity has stepped out of Africa.

The third occurred about 100,000 years ago, and Templeton also found that there was a tendency to return from Asia to Africa after that.

Can I also ask how many ice ages have life gone through in evolution.

What about race, you can ask.

Wait a minute. There have been eleven ice ages since the formation of the Earth, and the last ice age is called the "Great Ice Age", which occurred 18,000 years ago and ended 10,000 years ago.

Ethnographic names and basic characteristics.

For the first time, human beings evolved from primitive apes to humans with certain intelligence, such as Heidelberg man, Guava apeman, Peking man, and Neanderthals.

The second modification occurred 700,000 years ago, after the exodus of humans from Africa, the first mutation occurred in the gene, and this genetic modification allowed humans to truly evolve from primitive humans to humans, that is, late Homo sapiens, at this time Late Homo sapiens at this time are not much different from modern humans in appearance and intelligence.

The third time should be directly called Homo sapiens.

The ancestors of the ancients who came out of Africa for the third time, that is, all human beings today, have more or less had genetic exchanges with these extinct humans, for example, we have Denisovan DNA imprints in our genomes, and we also have Neanderthal DNA. For example, the entire genome of modern humans is from these extinct human races, with the remaining 97% coming from Africa.

Hope your problem is solved

Thank you, no thanks.

Have a great day

Finally, ask a question about the evolutionary roadmap of killer whales.

Hello. Please forgive me that I can't find a specific evolutionary route here.

It may be because the climate in Africa itself is relatively severe, so people will start to migrate.

One of the more popular beliefs is that the ancestors of all modern humans came from East Africa, leaving their homeland about 100,000 years ago and rushing out of Africa and into the world.

The earliest origin of human beings has always been disputed, and most people believe that the ancestors of modern humans came to East Africa. Because Africans are genetically extremely diverse compared to humans on other continents.

Because humans first originated from Africouscous, if you divide it by region, it may come from Africa.

Africa is the cradle of humanity, first proposed by Charles Darwin. He made a bold speculation in his 1871 book, The Origin of Man and the Choice of Sexuality.

Man first originated from the top of the mountain, as for our ancestors from **, there may be no way to tell, after all, the age is too old.

Western Europe, once considered the birthplace of mankind. In later research, it was said that we were from East Africa.

This is in the history books or in the research that has been going on, indicating that our ancestors appeared relatively early in Africa.

That's not clear, but I feel that why our ancestors had something to do with people in Africa, aren't they the cave people in Beijing, they all evolved step by step.