If humans evolved from apes, why do orangutans still exist, and why did they not evolve into adults? This gorilla may also be thinking " why haven't you evolved into gorilla ?" Please answer him.
I can't remember how many times I heard people say, "Evolution cannot be true. If it is true, why are there still apes?" Why haven't they all evolved into humans? Having this question shows that you have a fundamental misunderstanding of how evolution works. Before explaining this issue, let's clarify some things.
The relationship between humans and apes
First of all, humans evolved not only from apes , humans are a kind of of apes. Apes are defined as primates without tails and without cheek capsules, which meet this description. Therefore, humans are apes. I am an ape, you are an ape, our parents are all apes, and modern people all belong to apes. If you don't want to admit that you are an ape, we need to continue to subdividing it and let us distinguish it from other apes, such as chimpanzees, bonobo , gorillas. There is another knowledge point that many people unexpectedly think of. From the perspective of genetic relationship, is more intimate with chimpanzees and bonobos (boonas) than gorillas. is more intimate with humans. If they are brothers with humans, then gorillas are at most our cousins. Don’t look at gorillas and they look like them.
Figure: All existing ape species, humans, chimpanzees, bonobos, two kinds of gorillas and three other orangutans
ancestors of humans
Secondly, humans are not that evolved from any of the ape species that currently exists. Modern little apes appeared 18 million years ago, orangutans appeared 14 million years ago, gorillas appeared 7 million years ago, and humans and chimpanzees appeared 300 to 5 million years ago.
We evolved from the common ancestor of chimpanzees and bonobos. Going further back, we (human, chimpanzee, bonobo, plus the ancestors of the three) and gorillas evolved from the same ancestor. Going further, we (plus gorillas) evolved from our common ancestors with gorillas. Finally, we, along with all known apes, evolved from the same ancestor.
If time continues to be pushed back, At a certain point in the past, the ape species had not been born, and all existing ape species, including humans, evolved from another mammalian species. other apes currently in existence are not our ancestors, they are more like our cousins.
Figure: All existing ape species evolutionary relationships, humans and our similar apes evolved from an extinct common ancestor. We did not evolve from any existing ape species.
After clarifying these questions, answer the question: Why are there still apes now, and why have they not evolved into adults?
Why are there still apes now, and why have they not evolved into adults? The problem of
first makes a reasoning assumption that evolution can only go one way, and that species must evolve as a whole. Simply put, since you are all in school, why haven’t you come to Tsinghua yet? As long as you go to school, you must be able to go to Tsinghua. What should you do if you ask Peking University ? What should you think about Fudan ? The reason is very simple, the learning methods are different, the efforts are different, the resources are different, and even the cities are different.
Figure: The tree of origin of species
Evolution theory is not something we can do whatever we want. Every branch of a thousand troops cross the single-plank bridge has its own way out, and not all have to squeeze on the single-plank bridge. What if most people can swim, and some of them drowned, gorillas will also ask you why you don’t learn to swim. Go down and swim with me. How crowded are there on the bridge.
species will not evolve into a single whole. A species can differentiate into several different species. Over time, these species continue to evolve more branches, and the kinship between them will become more and more distant.
If humans evolved from apes, why are there still apes now? It's like asking "If I'm a descendant of my grandfather, why does my cousin still exist, why is he becoming less and less like me?" The answer is: If you have a cousin, then your cousin still exists because you're not the only descendant of your grandfather.
Why did non-human apes evolve into humans? We do not have enough evidence to answer this question, because you cannot go back to the past and read the entire evolutionary process. We can only use fossils, genes, and background environment investigations in different periods to get the answer to human evolution .
The answer is that Every species will adapt to the environment in its own way and adapt to the continuous changes of the environment through continuous evolution. The environmental changes and methods of adapting to the environment encountered by other apes are different from the ways in which humans adapt to the environment in the history of evolution. Therefore, we have no reason to explain why gorillas evolved into humans, just as there is no reason to explain why humans evolved into gorillas.
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