But what about our humanities? Among them, there are orangutans, gorillas and chimpanzees in the orangutainae, but there is only one species in our hominid family at present, that is, we Homo sapiens. Then the question is, why is there only one person left in our subfamily in the long evolution, and other races?
Some people say that there are white people, yellow people and black people on the earth now, but this is only based on skin color. Genetically, we still belong to the same race, because we can marry each other and have children.
However, two million years ago, there was more than one race on the earth. At that time, there were several humanoid creatures in Africa, including Neanderthals, Denisova and flores. They look very similar to Homo sapiens, but they are quite different in appearance and body structure. Just like tigers and lions now, they are the same species from a distance, but they can see great differences from a close look.
Strangely, the earth is fully capable of accommodating other anthropoid species, and other animals have several types of animals in a genus, so what puzzles scientists is why all other species have become extinct, leaving only us Homo sapiens.
Dating back to 30,000 years ago, in addition to our existing Homo sapiens, there are other races on the earth, which first went out of Africa and spread all over the world, such as Europe and Asia. Dwarf Flores may have lived to 18000 years ago and died out in a large volcanic eruption, because living on an island can easily make a species extinct in the face of disaster.
In fact, we don't know much about the Denisova people, because the fossil evidence preserved by this species is very rare. We only found a small phalanx and two teeth of this species.
But we know a lot about Neanderthals, because Homo sapiens and Neanderthals lived together for the longest time and preserved a lot of fossil evidence, so we can answer why there is only one species left on the earth by how Neanderthals became extinct.
Homo sapiens has more advanced and diversified tools and is more suitable for living in open areas.
Neanderthals were not only strong, but also evolved earlier than homo sapiens. There is evidence that Neanderthals had lived in high latitudes such as Europe and Asia for nearly 200,000 years when Homo sapiens went out of Africa to all parts of the world. They are strong hunters who are used to hunting in the forest. They have also evolved the ability to adapt to the cold environment. They can also wear warm clothes to resist the cold.
Some researchers believe that when the climate in Europe and Asia began to fluctuate, the colder climate led to changes in the living environment of Nigerians, forest degradation and more openness, which is very similar to the African grassland where Homo sapiens lived.
When Homo sapiens walked out of Africa and entered the environment where Nigerians lived, the two species competed. Homo sapiens adapted to the changing environment more quickly with more diversified and advanced tools, and the hunting range of Homo sapiens was wider. Besides hunting large animals, Homo sapiens also hunted small creatures such as rabbits.
Nigerians have relatively simple tools, and their tools are more suitable for killing large animals. Hunting small animals has no innovative gadgets and technologies, so when the environment changes, their food will be in short supply, while Homo sapiens' more advanced tools and innovative ability show stronger adaptability. Therefore, when Homo sapiens and Nigerians compete and struggle, we can quickly replace Nigerians.
Homo sapiens is not only a tool, but also better than Nepalese in culture.
In addition to the more advanced and deadly tools used by Homo sapiens, we Homo sapiens also created cultural and life works symbolizing wisdom and civilization, which also helped Homo sapiens overcome other races.
Researchers found that Homo sapiens began to create their own culture and art after leaving Africa, and found ancient decorations, jewels, animal statues and even simple musical instruments.
When Homo sapiens settled in Europe and Asia, with the rapid population growth, people needed more complicated ways to communicate and cooperate with each other, and the population growth gradually formed a social structure, so it was particularly important to create their own culture and symbols symbolizing their own groups.
Because culture and symbols are a kind of social adhesive, people can have a sense of identity and organize social and economic affairs with each other. Compared with Nigerians, they are a little rough and have not created their own culture and symbols. They just hunt, eat, sleep, have sex and have fun every day.
So we Homo sapiens are superior to other races in tools, culture, society, war and love. Our complex social structure and more flexible brain enable us to defeat species in the same niche.
abstract
Tens of thousands of years ago, there were other races like Homo sapiens on the earth, and we shared the resources on the earth together. They are in the same ecological niche and evenly matched, and no one can replace anyone for a long time.
However, each of these races has a chance to win, but in the end, we Homo sapiens defeated all species. Maybe they retreated to extinction under the pressure of survival, or maybe we Homo sapiens have killed all our competitors!
The final result is that there is only one race on the earth at present: Homo sapiens!