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It evolved over the last 10,000 years of evolution.
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Natural selection, survival of the fittest. At first, he landed on all four feet, but then he slowly became walking on two feet, and slowly he became a human being when he could use tools.
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Hehe, no one can tell you this question completely. Because it's just a guess, a hypothesis. The evolutionary explanation for this is nothing more than a few sentences: "After a long period of evolution and the accumulation of time, the ancient apes evolved into humans".
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It's not changed, it's evolved.
Human evolution originated from forest apes, and developed step by step from primates through a long evolutionary process. It has gone through four stages: ape man, primitive man, sapiens man, and modern man.
Due to the development of archaeology, prehistoric civilization has been gradually denied, and archaeology has most of the evolved hominin fossils. In conjunction with the discoveries of modern biology, it was discovered that genetic DNA is evolutionary, confirming the authenticity of the theory of neutral evolution.
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Life evolves little by little in life.
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Answer: Human evolution originated from forest apes, developed step by step from primates through a long evolutionary process, and went through four stages: ape humans, primitive humans, Homo sapiens, and modern humans.
About 4.5 million years ago, humans and apes began to diverge, giving rise to Australopithecus ramanacus, which later evolved from Australopithecus australopithecus 2 million years ago, and then further developed into modern humans. Regarding the development process of human beings, it is generally divided into four stages: 1. The early ape-man stage.
It lived between 3 million and 1.5 million years ago, and already possessed the basic characteristics of humans, such as being able to walk upright and make simple gravel tools. 2. Late ape-man stage. About 2 million to 300,000 years ago, the body resembled a man, the brain was larger, and it could make more advanced paleolithic tools, and began to use fire, such as the Beijing ape man in Zhoukoudian, Beijing, China.
3. Early Homo sapiens (hominid) stage. Between 100,000 and 200,000 to 50,000 years ago, it gradually broke away from the characteristics of apes and was very close to modern humans, such as Neanderthals in Germany. 4. Late Homo sapiens (newcomer) stage.
About 4-50,000 years ago, the evolution of human beings at this time showed a significant acceleration, and the morphology was very similar to that of modern humans, and culturally, there were already the art of carving and painting, and ornaments appeared. For example, in 1933, the cave man on the top of Zhoukoudian Keel Mountain was discovered. At this time, primitive religions had already arisen and had entered a matriarchal society.
In the late Homo sapiens stage, modern humans began to differentiate and form, and spread throughout the world.
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Human evolution originated from forest apes, developed step by step from primates through a long evolutionary process, and went through four stages: ape humans, primitive humans, Homo sapiens, and modern humans.
The first humans are known in anthropology"Fully formed people"。Paleoanthropologists in China divide this process into two stages: apes and Homo sapiens, each of which is divided into two periods, early and late.
After in-depth research, some scientists have questioned the thesis of "apes becoming humans" from many aspects, but they have not been able to get out of the misunderstanding of "evolution" and try to trace the "evolution" of humans from another aspect**, they are born from the fact that people like to swim, eat salt, fish, and seafood? The idea that man may have evolved from a fish in the ocean is a bit ironic.
On March 15, 2001, the Beijing Evening News pointed out in "The Universe: The Secrets You Don't Know": "From the ancient primitive state to the modern high-tech thinking, the brain has not evolved, and the brain we use today is not much different from the brain 30,000 years ago, and under normal circumstances, it only uses 10% of the potential of the entire brain."
The International Herald Leader of 28 October 2003 also questioned the origins of modern humans in a report on "The Origin of the Modern Human Brain in the Middle East 10,000 Years Ago".
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