The development and evolution of human civilization is actually a process of constantly adapting to the environment, as Darwin said: Survival of the fittest. This is the core, or driving force of biological evolution. Only by adapting to the natural environment can one not be eli

The development and evolution of human civilization is actually a process of constantly adapting to the environment, just as Darwin said: Survival of the fittest. This is the core, or motivation of biological evolution, . Only by adapting to the natural environment can you not be eliminated, and you will have the opportunity to continue to develop on the earth, and ultimately allow your genes to continue.

But the evolution process of earth organisms is too long, including the origin of humans, and there are many different views, especially in , there are too many possibilities for the origin of humans. Human literature is obviously so unique, which makes people wonder if humans really originated on the earth?

The current mainstream view is that human beings originated from the African continent, and have evolved from Australian ape to this day, and have developed a smart civilization. If we trace it earlier, it can be 65 million years ago when dinosaurs became extinct because of the asteroid hitting the earth. At that time, at least more than 60% of the species on the earth disappeared.

. Mammals seized the opportunity and took nearly 10 million years to grow rapidly, becoming another representative of the dinosaurs who ruled the earth after they were dinosaurs. The vigorous development of mammals is also the emergence of primate ? The emergence of human civilization has laid a solid foundation. It can be said that as long as one step is wrong, human civilization will not appear, or it will not become the situation today.

Therefore, some people believe that the origin of human civilization may not be on the earth, and the extinction of dinosaurs may not have much to do with the impact of asteroids, but because of other forces.

The unique human

1, the lonely Homo sapiens , life on Earth has a development and evolution history of billions of years. Although more than 20 species extinctions have occurred in the last 500 to 600 million years, there are still millions of existing species, and humans should be the loneliest among them.

Modern humans are all descendants of Homo sapiens , or belong to the species Homo sapiens, and Homo sapiens belongs to the genus of humans. We are different from other creatures. There are no other brothers and sisters under the genus of humans.

Currently, it is believed that other races under humans have become extinct, including Neanderthal , Denisovan and more than 10 other races, but they all disappeared during the process of development and evolution. The strangest thing is that Neanderthals have strong adaptability, strong bodies, and larger brain capacity, but they are defeated by the pressure of Homo sapiens.

At that time, Homo sapiens were not the smartest and not the strongest, but when they first arrived at the environment where all races adapted to tens of thousands of years, they could replace them. What did they rely on? The lonely Homo sapiens came to all over the world when they walked out of Africa for the second time. With the expansion of Homo sapiens, other races disappeared, and scientists don’t know what happened.

2. Humans who have premature birth, In a sense, humans are " premature birth ", which also leads to human babies who need to follow their parents for a long time to survive independently after birth. Of course, this does not refer to material or money, but survival ability.

Among all animals, human babies should be one of the weakest. Unlike some herbivorous animals, such as wildebeest on the African savanna, their babies will stand up and run quickly as soon as possible after birth, so as to avoid being surrounded by predators. Humans are different. The pressure that threatens life during growth does not exist.

Human "premature birth" is inseparable from upright walking, because the birth canal is narrower when walking upright, and the intellectual requirement also requires a brain skull. In order to avoid difficult childbirth as much as possible, human babies are born early, and their brain skulls are relatively soft.

3. Apart from intelligence "nothing", may not be accurate to say this, but it is true. Without technological means, it will be difficult for humans to survive and develop for a long time on this dangerous earth. We do not have sharp teeth, claws, and are not smart in our ears and eyes. When we look at the world by relying on our senses alone, sometimes we are really not as good as some animals, such as cats and dogs.

The Origin of Life

Currently, scientists speculate based on the ratio of carbon isotopes and the age of stromatolites that life on Earth appeared at least 3.7 billion years ago, of course, it may be earlier. Life on Earth has evolved from the initial simple single-cell life to today, and has achieved an upgrade process from simple to complex, from aquatic to terrestrial, from low to high.

However, the issue of the origin of life on Earth remains to be verified. The mainstream view believes that life originally originated near the hot spring at the bottom of the primitive ocean, and life is formed by raw materials on the earth. This is a typical self-original origin hypothesis. Life on Earth originated from the earth. After the formation of the earth, it took nearly 1 billion years to gradually develop to suit the birth and development of life.

The opposite is the exogenous origin hypothesis. Scientists believe that the initial organic molecule on Earth may have come to the earth with the impact of celestial bodies. Some primitive and complex amino acid already existed in the primitive nebula before the birth of the solar system.

Scientists have discovered the existence of essential organic matter and organic molecules such as protein , amino acids, and ribose from some meteorites or asteroids. For example, Hayabusa II collected samples from the Ryugu asteroid and returned to Earth. Scientists found a variety of different amino acids in the samples, which also confirmed that extraterrestrial celestial bodies have the ability to carry organic matter to return to Earth and space. Therefore, it is also possible to say that the exogenous origin hypothesis is also possible.

The origin of life on Earth is possible outside the earth, and human civilization originated from ancient apes millions of years ago. The current chimpanzees are the species closest to humans. According to the currently known fossil evidence and genetic judgment, humans originated from ancient apes.

says at the end

So is there still a possibility that originated outside the earth? The reason why some netizens have such questions is mainly because "anthropocentricism" is causing trouble. The life system of the earth is not centered on humans. We are just an ordinary member of it. Other species rely on reproductive ability, sharp teeth, strong bodies, etc. to survive on the earth. Humans rely on intelligence, which is also the main reason why we claim to be Homo sapiens.

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