What is the significance of the Chinese Academy of Sciences discovering for the first time that the

The Chinese Academy of Sciences discovered for the first time that the human middle ear evolved from the gills of fish, which is of great significance, which can help scientists study the origin of our human beings, and also understand the evolution and development of species, providing the most direct and powerful evidence for the evolution of aquatic organisms into terrestrial organisms.

The discovery originated from scientists' research on ancient fish fossils in Changxing, Zhejiang Province and Qujing, Yunnan Province. These ancient fish fossils correspond to fish populations that lived more than 400 million years ago. On the current land, the fossils of ancient fish will be preserved, which also confirms the saying "the sea has become a mulberry field".

The origin of humanity has always puzzled scientists, and it is also capable of piquing the interest of all human beings. We all want to know what kind of animal we came from, what kind of animal our ancestors were, and what kind of animal we evolved from. After the unremitting efforts of scientists, it has been discovered that our human middle ear evolved from the gills used by fish to breathe.

Even with this in mind, it is difficult to completely solve the mystery of human evolution. This major discovery will help scientists study the evolution of human beings.

Fish are constantly evolving as their environment changes. They have made bold attempts again and again, so that their homes can finally get out of the water environment, come to the land, and adapt to the life on land. In this process, the gills of the fish slowly degenerate into the middle ear that receives sound.

This discovery has brought a huge shock to us today. If this assumption is true, it is possible that we humans lived in the water at the earliest, and our ancestors were ancient fish. After moving away from the water environment, a new evolutionary process begins.

The earth has existed for billions of years, and in this long time, life has also evolved, from simple to complex, and from low to high. When we hear that humans originate, probably fish, we may be surprised.

Personally, this is not surprising; Human civilization has only been recorded for thousands of years, and this short time is like a drop in the ocean compared to hundreds of millions of years. In these hundreds of millions of years, anything is possible, and the evolutionary diversity of life has made the earth have the ecosystem it is today.

This significance is that it allows us to understand an evolution of the human body, gives us a deeper desire to explore science, and also proves that the research of the Chinese Academy of Sciences has made a major breakthrough, and this discovery has great reference research significance.

The meaning is that it can be confirmed that the human middle ear has fish gills evolved, after all, it was still a speculation stage before, and there was no substantial evidence.

This means that life was born in the ocean, and there is theoretical support to advance the study of the origin of life.

This is very helpful for studying human evolution, and it can provide some evidence, and it can also allow everyone to better understand the process of human evolution.

This has a new understanding of the evolution of human beings, and only by studying and failing to find a better evolutionary process can we have a new understanding of the evolution of the human body and make corresponding contributions.

It can let us better understand the origin of human beings, let us understand the changes of human beings, understand the development of some animals, understand the development of plants, and let us understand the development of some genes.

This discovery can give us a better understanding of the origin of human beings, because it shows that the evolution of human beings is also related to fish, and can bring new ideas to the study of human beings.

Darwin's theory of evolution believed that humans evolved from monkeys, but today's scientists have discovered that the human middle ear evolved from fish gills, which is likely to overturn Darwin's theory of evolution and evolve a new theory of evolution.

First of all, it will help to fill the gaps in related aspects, and on the other hand, it will help to promote the progress of our human race, and it will provide a good model for the study of human evolution, which will play a pivotal role in the future development process.

I think it can let us know that human evolution is not only ape, there may also be fish genes, and it can also detect that humans lived in the first place, and may even be in the sea.

This is very helpful for studying human evolution, and it can provide you with some evidence, and it can have certain details.

It can better let us understand the origin of human beings, understand the evolution of human beings, and also understand the genetic problems that occur in the process of human evolution, as well as the changes in human beings.

The significance of this discovery is to make people more aware of how they came to be, because they can evolve from fish, so we can understand that maybe our ancestors slowly moved from underwater life to water, which can be very satisfying for people's curiosity, and it can also be said that scientific research has made a major breakthrough.

It is convenient for scientists to study the origin of human beings, understand the changes that have occurred in the human body, the process of evolution, overcome medical difficulties, and advance human research one step further.

Today is June 21st, according to the latest news, our domestic scientists published an important **,** in an international professional academic journal, which proves that the human middle ear is actually evolved from the gills of fish, so how is this step proved? And what does it mean?

There have always been many theories about why the human ear and the oral cavity are connected, and the ear does not need to communicate with the oral cavity, which is meaningless, but in fact, there is a small opening between our middle ear and the oral cavity. And this fact also provides support for the argument for this discovery, because human beings do not need this openingHowever, fish need to absorb oxygen in the middle of the water through their gills, so the gills of fish are actually slowly purified into the middle ears of humans, but it still retains the previous breathing pathway, which can be said to be evidence that the middle ear of human beings has changed from the gills.

The first is through the identification of key species, this time the most important is the discovery of a 100 million years old broad-shelled fish bone fossil in Qujing, Yunnan Province, this bone fossil scientists attach great importance to it, and sent it to Zurich, Switzerland for the most advanced light source exploration, and finally restored all the bone fossils, in his fossilsThe discovery of the gills is a direct indication that there was once such a connection between humans and fish. Subsequently, through the study of the tongue and jaw, articular bone and square bone, as well as degeneration and comparison, it was finally found that the three bones of our human middle ear are the first to change from these bones, which can be said to completely prove this theory.

The ear, specifically the middle ear, evolved from the gills of fish, and the main way to confirm it is the archaeological discovery of paleontological fossils, but now it can also be confirmed by means of genes and molecules.

First of all, because the structure of the human body is relatively similar to that of the ancestors of fish. For example, our teeth, jaws, midbrain, etc. Paleontologists continue to fill in important links in the evolutionary chain from fish to man.

Fossils provide important evidence for the perfection of this chain. On the basis of fossil evidence that solves the scientific problems of the century, the evolutionary process of stomata from jawless to quadrupeds is clarified, thus establishing the evolutionary sequence of stomata from jawless gills to human ears.

Secondly, it was confirmed that the tympanic chamber of the human middle ear, the three ossicles that conduct sound, and the eustachian tube leading to the mouth are the secrets of human hearing sensitivity. The stomata of the fish, located behind the eye, is an incomplete gill slit with only a false gill between the jaw arch and the lingual arch, which is a very important respiratory organ of the fish. In cartilaginous fishes, the stomata are mainly used to inhale the current, which is the survival secret of benthic cartilaginous fishes adapted to life on the bottom of the sea, whereas in primitive bony fishes, the stomata are mainly used to breathe air.

In addition, the discovery of fish fossils proves that the evolution of the middle ear originated from the gills of fish。This well explains the fact that the human ear, although it does not breathe today, still communicates with the mouth as it was once the respiratory organ of fish. In several years of excavation of the Early Devonian strata, new fossil materials of the broad turtle fossil with complete gill imprints were collected for the first time.

This provides the most accurate anatomical and fossil evidence for the stomata of fish and other vertebrates to originate from vestigial gills.

It is important to know that the cranial nerves of the dwarf fish are also recovered very accurately. After the facial nerve emerges from the back of the head, it follows the anterior semicircular canal of the inner ear all the way to the first branchial sac behind the eye. Thus, various evidences such as the number, topology, morphology, and innervation of the gill sacs suggest that there is a gill sac behind the eyes of soft-shelled turtles, that is, the tongue-maxillary sac located between the jaw arch and the lingual arch.

Morphologically, the tongue-maxillary sac of the soft-shelled turtle is still an undegenerated gill sac, but to prove that it is a gill with normal respiratory function, the last link in the whole chain of evidence is still missing.

Researchers from the Chinese Academy of Sciences found a 100-million-year-old fossil of a wide turtle in Qujing, Yunnan, which preserved the structure of the gill filament, and then compared it according to the shape of the structure, so as to find that this part of the human body is due to the evolution of the gills.