On September 29, 2022, of the Chinese Academy of Sciences held a press conference on the major achievements of the source exploration research on "From Fish to Human", and Academician Zhu Min, the team of Academician Zhu Min, the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences, published four papers on the cover of Nature.
are:
double-row guinea pig - the oldest jawed teeth research results;
Silurian The early discovery of Guinea pig was very rare, pushing the earliest fossil record of teeth by 14 million years. It is the earliest and most intuitive evidence that the jaws have appeared in so far. reveals the growth structure and development characteristics of the earliest jaws.
Xinsu Fanjing Mountain Fish - a research result of a close relative of a shark 439 million years ago;
It is a cartilage fish belonging to the sprigfish morphology. microbody fossils and partially preserved bone fragments provide the earliest reliable morphological and developmental data among cartilage fish. pushes the time when the exact reconstructible body fossils appear about 20 million years ago.
Lingdong Tujia Fish - a research result that reveals the origin of fish fins;
The discovery of a pair of ventral fin folds in its abdomen that runs across the body provides very critical fossil evidence for the "fin fold theory" of the origin of paired appendages in vertebrates.
creeping Shen's sprigfish - the earliest well-preserved cartilage fish known to date, about 436 million years ago.
Miracle Xiushan Fish—Research results with the combination characteristics of shield skin fish.
is about 436 million years ago and is one of the most important fossil evidence to explore the origin of jaws and the early evolution of jawed fish.
Their discovery also means that the study has made another major breakthrough in the research direction of jawed species and early evolution. rewrites the early evolution history of jawed vertebrates, and the key evidence of "from fish to humans" was discovered.
This fossil group preserves a large number of biotas of complete jawed fish fossils in the early Silurian period, and can be called "the dawn of jawed fish".
and here reports the Silurian "Chongqing Special Buried Fossil Library" and "Guizhou Shiqian Fossil Library", which traces many human anatomical structures back to ancient fish 440 million years ago.
fills the missing key links in the evolutionary history of "From fish to human", refreshes the traditional understanding of the origin and rise of jawed vertebrates, and further consolidates the evolutionary path of "From fish to human".
That is to say, according to the current research, the fish found in this time lived about 440 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 familiar twelve zodiac signs, and their ancestors are also jawed fish.
Let’s say that, including us humans, 99.8% of vertebrates on the earth have jaw (maxillary and chin).
So did humans evolve from fish?
The current subjective view believes that humans are indeed evolved from fish, of course not only humans, but the ancestors of vertebrates on land are all fish.
About 300 million years ago, a group of meat-finned fish landed on land and then adapted to land life.
began to slowly evolve into amphibian , reptile . It was not until 65 million years ago that the dinosaurs became extinct due to a disaster that mammals began to appear. After , lower primates gradually appeared, which are the direct ancestors of humans.
2.5 million years ago, our ancestors came from the jungle to the grassland and learned to drill wood to make fire and walk upright.
And Chinese scientists have also confirmed that humans evolved from fish. It took nearly 500 million years for the evolution of from fish to humans. has experienced countless changes in this way, so we are today.
The historical process from fish to human is not only preserved in the fossils in the strata, but also marks the embryonic development of our humans. The early embryos of our humans will form gill slits like fish, and then the gill slits will gradually heal, and the limbs will be like fish fins and also have tails.
actually had the most developed tail in the second month. It was not until the end of the third month that it began to deteriorate. All these show that fish and humans have a close evolutionary relationship.
For example, have you noticed that some people have a very small hole next to their ears? is actually called the blind ear tube.
According to statistics, one in every 10 people will have blind ear tubes. In fact, its existence is not accidental, but the result of human evolution .
This hole is the emergence of evolved from marine organism . This small hole in is a manifestation of ancestral rebirth , which is what we often call ancestral rebirth phenomenon .
Many people do not combine thoroughly during the development process, and will form blind ear tubes next to the ear.
Of course, there are still many such phenomena, which is enough to prove that human evolution is not as simple as we imagined, and it also proves that we evolved from fish.
