In the Bible, Adam was the first man in the world, and Eve was the first woman in the world, and later all the people in the world were their children.
In the book, the origins of humanity become simple and pure, but from a scientific point of view, much more complex. So in reality, is it possible that Adam and Eve really existed? Yes, it really exists.
This answer may come as a surprise, but the real-world Adam and Eve are biologically identified, but they are still different from the Adam and Eve in the book, and to be precise, the biologically identified Adam and Eve should be called "Y chromosome Adam" and "mitochondrial Eve". Both Y-chromosome Adam and mitochondrial Eve are real figures, one living 250,000 years ago and the other 150,000 years ago. To be precise, they are not the same as today's human beings, they are the ancestors of modern humans, Homo sapiens.
Now, the same Y chromosome as "Adam" can be found in any man in any country or region in the world, and the same mitochondrial DNA as "Mitochondrial Eve" can be found in any woman in any country or region in the world.
Because of this, the two African intellectuals, adam of the Y chromosome adam and the mitochondrial Eve, were named "Adam and Eve" and are biologically regarded as the ancestors of modern humans. There are many fossils of Homo sapiens that have been discovered, so why only two have won this honor? Note that the Y chromosome and the mitochondria are typical sex genetic material, the Y chromosome can only be derived from the male, and the mitochondrial DNA can only be taken from the female, assuming that a certain offspring of a male Homo sapiens has only women and no males, then his Y chromosome is difficult to inherit, similarly, if there are only males in a certain offspring of a female Homo sapiens, then her mitochondrial DNA cannot be inherited, so the Y chromosome of a male Homo sapiens or the mitochondria of a female Homo sapiens can be inherited to this day. And it is not an easy task to find in all human beings.
It can be said that the biological identification of adam and mitochondrial Eve on the Y chromosome has important significance for the pursuit of human origin.
The ancestors of modern humans were Homo sapiens, so where did Homo sapiens come from? The history of Homo sapiens can be traced back to 2.4 million years ago, and before that, the ancestors of Homo sapiens were Australopithecus australopithecus, as can be seen from this name, Australopithecus is not considered a human, at most can only be regarded as an evolving human, Australopithecus lived on the grassland, the living environment forced them to learn to walk upright and try to use tools, and it is precisely because of this that the brain of Australopithecus became more and more developed, and eventually evolved into Homo sapiens.
Why did Australopithecus leave the forest to live on the prairie? The only thing we know is that this migration occurred about 4 million years ago.
4 million years ago, the ancestors of humans were real apes.
Sometimes we often joke that "people are monkeys", in fact, this is very wrong, although monkeys and humans are primates, but in the suborder of apes, monkeys and humans can basically be said to be the farthest, because as early as 30 million years ago, the monkey family parted ways with the general family of apes on the road of evolution, and the closest to humans is the chimpanzees who parted ways with humans about 5 million years ago. So chimpanzees have a 99% genetic similarity with humans.
The genetic similarity is 99%, and the appearance connotation is so far apart? In fact, similarity is not the same, most of the genes that function in the organism are coding genes, and the coding genes account for only about 2% of the entire DNA sequence, and what we call genetic similarity is actually a comparison of the coding genes of two species, not the entire DNA sequence, so 99% of the gene similarity is actually only for the coding genes, and the genes outside the coding genes are not useless, they will also affect the physiological activities of the cell, but we know very little about it.
Through the comparison of genetic similarity, we can determine one thing, that is, bananas that are homologous to everything and look far from humans can also reach 50% genetic similarity with humans, while single-celled fungi and human genes are actually 20% similar.
So everything on earth has a common ancestor, that is, the first life form that appeared in the earth's ocean 4 billion years ago, it is the real Adam and Eve. Of course, we can only go back to this, because with the existing understanding of human beings, we cannot yet say what forces make a bunch of chemical elements form a self-replicating and self-healing life, which is probably the biggest mystery in the universe, and if we understand the reason, we can also make life.