Have you ever thought about the question, that is, where did the first person on earth come from and how did we reproduce step by step? What kind of experience do we have in this process? We often hear that people are pinched by Nuwa, and some people say that people are transform

Have you ever thought about this question, that is, where did the first person on earth come from and how did we reproduce step by step? What kind of experience do we have in this process?

We often hear that people are pinched by Nuwa , and some people say that people are transformed by fish, but there is no definite answer to this.

In the scientific community, we generally say that people evolved, , whether in the past or present, we are all evolving, but it has changed a lot.

The first person on earth

Scientists have not given a clear conclusion about human ancestors, so we can only say that the first human born is - ape.

In other words, the earliest humans did not appear a species out of thin air. According to Darwin 's evolution theory, people are all biological evolution processes.

As we all know, humans evolved from apes, and the late representative of humans formed during the evolution process is Australopithecus . Lucy, who is known as the "mother of humans", is called the "mother of humans", which combines the characteristics of modern humans and chimpanzees, and is also a milestone in the world of paleontology .

Although her brain is small, her limbs and pelvis indicate that she has feet, she can walk upright and climb trees. After she was discovered, the new primitive race of was named Afa Australopithecus .

That is to say, Lucy lived about 3.2 million years ago and was classified as a human race. The skeleton of has a brain capacity similar to that of apes and a two-legged erect walking similar to humans, supporting the view that walking upright before brain capacity in the debate on human evolution .

The origin of human beings process is divided into three major stages:

Ancient Ape stage, which is the process of human beings maintaining evolution since the evolution of ancient apes;

is both human and ape stage, and at this time they can make tools;

late stage ape man and Homo , both are divided into two stages: early and late stage.

Some people say that the emergence of human beings is an "an accident". What's going on?

It turned out that there were no humans before dinosaurs mass extinction , and then humans appeared. has been evolving continuously since then and eventually became the top of the earth's food chain.

Then men are born by women, is the first one also born by women?

is actually not easy to judge, why?

For the evolution of organisms, the emergence of humans may appear on the scale of "groups" and not on a single evolution. But the scientific community has not found any relevant evidence for who is the first person.

Now we can be sure that all people are born from women, but for the first person on earth, there is no practical evidence to prove it. means we don’t know how the first person on Earth came from unless we find relevant evidence.

It can be said that as the only intelligent creature on the earth, the evolutionary history of human beings can be described as "magical". Why do

say so?

Take dinosaurs as an example. Before humans, dinosaurs once spanned the Triassic, Jurassic and Cretaceous , and ruled on the earth for more than 100 million years. , however, still did not grow "a smart head".

It only took a few hundred years to reach humans, but it only took 2 million years to reach modern humans. I have to say that humans are a magical evolution.

Can humans continue to reproduce?

In fact, according to the genes, we will not be extinct.

As long as the 20 founders have several of them without lethal genes, the second generation can often reproduce 50 to 100 children.

Even if half of the healthy offspring are born, they can reproduce 100 to 1,000 third-generation descendants. In this way, there are thousands of people in the fourth generation and tens of thousands of people in the fifth generation. had basically bid farewell to inbreeding at that time, and humans had re-spread and reproduction and reproduction were not a problem.

So have you ever thought about a question, will humans always exist?

How long can we survive on Earth?

As long as the earth is not destroyed, humans will continue to reproduce.

Is this true?

is not actually.

The lifespan of the sun is about 10 billion years. Now the sun has evolved in the universe for about 5 billion years, and means that the lifespan of the sun is still 5 billion years.

Then once the sun disappears, it means that the earth is completely in darkness. The subsequent internal combustion of the sun will become stronger, and the energy and heat will be released more and more.

Let’s just say that, the earth will no longer be suitable for human habitation in about 1 billion years. The average temperature on the earth may reach 60℃, followed by continuous high temperature and drought weather.

Let’s say that, humans and dinosaurs are still different.

Humans are creatures with high IQ. The technology created by humans can make it easier for humans to adapt to the environment or change the local environment of the earth, or create a brand new environment.

The earth will become a zone where ultra-high temperatures and low temperatures coexist. At this time, humans can only leave the earth and travel in space. When the sun develops to the end, all living things on the earth that come will not exist.

And the moon will be our new starting point soon.