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Anonymous users2024-02-06People have brains and can transform and understand the world, ok?
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Anonymous users2024-02-05Darwin's theory of evolution holds that man evolved from a branch of apes.
Human mitochondrial DNA and fossils prove that humans originated in East Africa about 5 million years ago. It is a primate belonging to the same family as chimpanzees, gorillas, orangutans, gibbons, and hinged apes. It was found that human chromosome 2 may be the product of centromeric fusion of chimpanzee chromosomes (equilibrium translocation) and has multiple interbrachial inversions, and the rest of the chromosomes have strong homology.
Desmond Morris, a British zoologist and anthropologist, jokingly referred to humans as naked apes and wrote about the origins of human behavior from various perspectives. Engels is the author of "From Ape to Man", which represents the classic study of human beings by Marxism.
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Anonymous users2024-02-04Take a look at Modern Biological Evolutionary Theory.
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Anonymous users2024-02-03Australopithecus evolved into a human Australopithecus australopithecus - > Homo erectus - > Homo sapiens. 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 process of human development, it is generally divided into four stages:
1. 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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Anonymous users2024-02-02Judging from the human fossils that have been discovered, the evolution of human beings can be roughly divided into the following four stages: (1) Australopithecus stage. Australopithecus australopithecus has been found to have lived between 4.4 million and 1 million years ago.
According to the study of the anatomical features of fossils, the most important feature of Australopithecus that distinguishes it from apes is its ability to walk upright on two legs. (2) Capable person stage. Homo sapiens fossils have been discovered in Tanzania and Kenya in East Africa since 1960.
The first Homo hoans existed 1.9 million years ago. Homo habilis is classified under the family Homo homo. Homo sapiens had significantly larger brains than Australopithecus australopithecus, and could use stones as materials to make tools (stone tools), which gradually evolved into Homo erectus.
3) Homo erectus stage. Homo erectus belongs to the homo genus homo erectus (homo erectus), referred to as Homo erectus, commonly known as ape-man. Homo erectus fossils were first discovered in 1891 in Java, Indonesia.
At that time, there was also a debate about whether it was a man or an ape. It was not until the 20s of the 20th century that the fossils and stone tools of Peking Man were discovered in Zhoukoudian, Beijing, which established the position of Homo erectus in the history of human evolution. Homo erectus lived from about 1.7 million years ago to more than 200,000 years ago.
To date, Homo erectus fossils have been found in Asia, Africa and Europe. (4) Homo sapiens stage. Homo sapiens is generally divided into early Homo sapiens (ancient Homo sapiens) and late Homo sapiens (modern humans).
Early Homo sapiens lived between 200,000 and more than 100,000 years ago. Late Homo sapiens began about 100,000 years ago. Its anatomy has been basically similar to that of modern humans, so it is also called modern humans in anatomical structure.
The dinosaurs did not become extinct, the descendants of the pterosaurs were Archaeopteryx, and the descendants of Archaeopteryx were the birds of today! Some of the water monsters we are talking about today are the dinosaurs that survived.
A real thing happened in a certain country: someone broke down the wall in order to decorate the house. The walls of Japanese-style houses are usually covered with mud on both sides after the walls are lined with wooden planks, but the inside is empty. >>>More
Humans are the product of evolution, and the ancestors of humans were apes. Apes began to emerge in the Oligocene, about 30 million years ago. However, not all apes are direct ancestors of humans, and some apes are human"Uncle", some apes are human"Uncle"。 >>>More
Write about your deep affection for your dog at home.
What is evolution, the so-called evolution, is the gradual development and change of things, especially refers to the evolution of organisms from a lower-level, simpler state to a higher-level, more complex state from the history of Chinese civilization, there are more than 5,000 years, that is just the history of human civilization, there are many before, from primitive to civilization, is a process of civilization, and so on, the evolution of animals is the same, what we see, from the periphery of life, is a fairly short process, environmental changes are not too obvious, The evolution of animals is not obvious to us, so here comes the problem of what you call not being able to evolve. In fact, it cannot be said that animals are evolving all the time, it is a process of qualitative change, what we experience should be said to be quantitative change, and many quantitative changes can achieve qualitative change, (which is a bit of a philosophical problem). So, what we can say now is that animals are constantly changing, and at a certain time, and at a certain time, the animal evolves. >>>More