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Anonymous users2024-02-13To be precise, this is not just a matter of human evolutionary history, but the co-evolutionary history of all the animals with that backbone in all the chordates phylum. Evolution is not a simple process, but it comes with too much complexity. It may be that a certain fish suddenly evolved on its own and multiplied into the later phylum chordates, or it could be that a group of fish evolved hand in hand due to common factors and then slowly multiplied.
If it's the latter, it doesn't matter if you kill a fish, and if it's the former, then wait a few hundred thousand years or even longer, which is also an example of complexity, and as for what will become in hundreds of thousands of years, then I don't know, it may evolve into the same old way and just a little later, or it may simply go on another evolutionary route, so, complexity.
In fact, this question also involves a very classic philosophical question, that is, the grandfather paradox, which says that if a person travels to the past and kills his grandfather before he is married and has children, then whether this person still exists and can travel back in time. People have been arguing over this paradox, and some people even think that it is impossible to travel back in time. In short, it is not clear.
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Anonymous users2024-02-12Something unexpected happens.
Don't worry too much about it!
Feel free to do whatever you want!
It's also very redundant haha).
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Anonymous users2024-02-11Mermaids are the ancestors of our humans, so we can't harm our ancestors, mermaids.
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Anonymous users2024-02-10Man is man, and it is impossible for a fish to evolve.
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Anonymous users2024-02-09The main reason is that the genetic gap between fish and humans is too large, and at the same time, fish are active in the water, so there is less room for evolution.
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Anonymous users2024-02-08In the process of evolution, only a part of the fish evolved into humans, which is equivalent to living organisms, which evolved in different directions, some remained the same, and some went to another branch.
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Anonymous users2024-02-07The ancestor of humans may have been jawfish.
Judging from the current research, the fish found this time lived about 100 million years ago and belonged to jawed fish, they are indeed our ancestors, but they are also the ancestors of most vertebrates, such as the zodiac signs that we are familiar with, and their ancestors are also jawed Mina travelerfish.
In fact, most large animals, including humans, are jawed, and the features of the jaws can be traced back to the early Silurian period, about 100 million years ago, when jawed fish first appeared, and from there, they evolved into many other organs that were not previously available in jawless fish, such as teeth, paired nostrils, horizontal semicircular canals of the inner ear, pectoral fins, and pelvic fins.
It is these organs that have given our jawed species an advantage over the stalk, and today, all the extant vertebrates on Earth, including humans, are descendants of jawed fish.
How did humans evolve?
Divided into early Homo sapiens and late Homo sapiens, early Homo sapiens lived between 200,000 and -50,000 years ago. The physical characteristics are closer to those of modern humans, but still have more primitive properties. The brain has a capacity of about 1100-1600 ml, and it can already make bone tools and different types of stone tools, which can be artificially fired.
Economic life is dominated by gathering. There may have been an individual division of labor.
Men are engaged in hunting and women are engaged in gathering. In addition to the Americas and Oceania, early Homo sapiens chemical fiber senites have been found on all continents. Late Homo sapiens appeared on the bridge bench 50,000 years ago.
The system is basically similar to that of modern people, with an average brain volume of 1400 ml, and it will make various compound tools and conform to **. Produce primitive art and religion. Slowly transition into a settled life.
In the late Homo sapiens stage, modern humans began to divide and form and distribute throughout the world. Fossils of Late Homo sapiens are found on every continent outside of Antarctica.
Running rhino probably felt that he was a bit embarrassed to the rhinoceros family by growing like this, so he was ashamed and brave, and the more he grew, the bigger he grew, and accidentally grew like this. The giant rhino, which is more than 7 meters tall and weighs more than 20 tons, has grown not only into the largest rhino family, but also the largest mammal ever seen on land. Even if you can only see the fossil now, you can still feel the shock.
Earthworms are known as "ecosystem engineers" because they are able to have an important impact on many of the processes that determine soil fertility. It forms numerous reaction rings in and out of its body and abroad through activities such as feeding, digestion, excretion, and burrowing, thus influencing the biological, chemical, and physical processes of the ecosystem.
For example, copper gears, the smelting of copper at that time was indeed a relatively high level, but it is indeed a very rebellious thing that copper gears can be preserved to this day.
Niels Bohr discovered that the structure of the atom was inspired by a dream, and Einstein coined the term the speed of light by dreaming of a fast skiing on a mountain.
In fact, it is possible, as long as your own strength is strong enough and you have mastered certain skills. But only one of those people in history succeeded, and he was injured. The other two lost their strength in the end, and were finally bitten by the leopard.