At the beginning of its formation, the environment of the earth was extremely harsh and the surface temperature was very high. At that time, there was no life on the earth itself, let alone human civilization. Since humans do not exist on the earth itself, where do we humans come

At the beginning of its formation, the environment of the earth was extremely harsh, and the surface temperature was very high. At that time, there was no life on the earth itself, let alone human civilization. Since humans do not exist on the earth itself, where do we humans come from? This is a question that many people are studying, but there has never been a very clear answer. Although many friends do not agree with the evolution theory , the current mainstream view believes that humans evolved from the forest ape , so where did the forest ape come from? In the past two days, the topic "Chinese scientists confirm that humans evolved from fish" has been put on a hot search. Did humans really evolve from fish?

"From Fish to Human" Evolution

Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences Academician Zhu Min's team published 4 academic papers in the British journal " Nature ". These papers describe the major discoveries of the "Chongqing Special Buried Fossil Library" and the "Guizhou Shiqian Fossil Library". It traces many human-related anatomical structures to ancient fish 440 million years ago. The missing initial link in the history of evolution of "From Fish to Human" provides for the first time the rise of jaws and the earliest radiation differentiation.

The question of how humans were born is actually difficult to answer, because the evolution and evolution process of countless creatures, including humans, is very long and extremely slow. There may not be obvious changes in tens of thousands of years or hundreds of thousands of years. It may take millions or even longer to see obvious evolution and evolution, and the evolution process from fish to humans will last for about 500 million years. The idea that human evolution has gone from fish to human is a generally agreed view by scientists. Our scientists’ discovery this time can be said to be a way to confirm that there has been an important puzzle and fossil (physical) evidence from fish to humans.

Humans are still evolving

Humans continue to evolve from fish to ancient apes in the forest, and to the current human civilization. Even now, humans have not stopped evolving and evolving. Because we need to constantly adapt to new environments and new lives. In fact, scientists have actually discovered evidence that humans are still evolving, and our evolution is faster.

One of the evolutionary evidence is wisdom teeth . I believe some friends have experiences of wisdom teeth extraction. That kind of experience may be very impressive. Some friends do not have wisdom teeth, so naturally there is no need to remove wisdom teeth. Some people have wisdom teeth, some people don’t have wisdom teeth, which is actually a manifestation of human evolution . Some people have no wisdom teeth, which is the result of evolution. Scientists have found that more and more people have not grown wisdom teeth over the years.

Related research was published in the Journal of Anatomy. Scientists from Australia discovered that in ancient times, our human ancestors had larger jaw bones, much larger than those of modern humans, so human ancestors in ancient times were able to grow wisdom teeth. However, today's babies are basically shorter at birth and their jaws are smaller, which means that the growth space of these newborn babies has less growth space and is not easy to grow wisdom teeth.

In ancient times, because our human ancestors were scarce at that time, and there was not as good food as they are now. When food was scarce, human ancestors even chewed on tree bark and roots, and these foods were difficult to consume. The existence of wisdom teeth allows humans in ancient times to better chew these foods. Later, with the progress of human society, the food source became more abundant, and the effect of wisdom teeth was not so obvious. Gradually, human jaws continued to decrease, squeezing the growth space of wisdom teeth. So some people have wisdom teeth, but some people don’t have wisdom teeth. Now scientists have found that the jaws of newborn babies are basically smaller, which also means that fewer and fewer humans will have wisdom teeth in the future. This is actually the result of evolution. If humans had not been evolving all the time, our jaws might have been large and wisdom teeth would have grown. There is still a lot of similar evolutionary evidence. For example, scientists have found that humans are cooling down now, and related research is published in the journal eLife.Scientists have found that the current average temperature of humans is no longer 37℃, but 36.6℃. In the study, researchers analyzed medical records over the past 200 years and found that human body temperature gradually drops by 0.05°C every 10 years.

For this discovery, researchers believe that the decline in human average body temperature may have a lot to do with the environment, living standards, and quality of life in which we live.

Because in the 20th century, 19th century or even earlier, human living conditions were still very poor and the medical level was very low, we are prone to various inflammations due to the invasion of various bacteria and viruses. Some chronic inflammations will cause our body temperature to rise. Later, as living conditions continued to improve and medical standards continued to improve, our infestations by these microorganisms greatly reduced, so our body temperature also dropped. Although the body temperature has dropped, it is not very obvious, and it has no negative impact on our physical health, so we don’t need to worry.