What caused the extinction of dinosaurs? Did they starve to death because of the climate problem at that time?

There are many hypotheses about the extinction of dinosaurs in the scientific community, among which the main ones are asteroid impact, weather change and disease epidemic. At present, most people accept that the dust caused by asteroid impact does not settle in the atmosphere for a long time, which leads to the death of plants without photosynthesis, which leads to the collapse of the biological chain from the bottom and the extinction of dinosaurs.

Scientists who believe that the weather made dinosaurs unable to adapt.

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First of all, the latest view on the extinction of dinosaurs.

Recently, dinosaur research experts from all walks of life in the world have been controversial. A recent study by a research team led by Keller, a professor at Princeton University in the United States, shows that dinosaurs became extinct 300,000 years after an asteroid hit the earth. So the extinction of dinosaurs is not directly related to the impact of asteroids on the earth. In this regard, public opinion is controversial.

The latest paleontological research evidence shows that tropical bees survived the catastrophe that led to the extinction of dinosaurs 65 million years ago. This new discovery "questioned" the meteorite impact theory. Jacqueline Kozisek, a researcher at New Orleans State University, announced this new idea at the just-concluded 2004 annual meeting of the American Geographic Society.

The author believes that the evidence presented by the above two experts is reliable, and the argument is pertinent only within a certain range, with high credibility.

Second, there are many theoretical hypotheses about how dinosaurs died, which are roughly as follows:

1. Some biologists believe that at that time, geological orogeny took place on the earth. Due to the sudden growth of many high mountains on the flat land, the swamp is greatly reduced and the climate becomes less humid and warm. The respiratory organs of dinosaurs were difficult to adapt to the dry, cold and dry air, and in winter, the dinosaur's food was gone, so it was on the verge of death.

2. Some scientists speculate that the explosion of supernovae caused drastic changes in the earth's climate, which led to a sudden increase in the surface temperature and then a sharp drop.

There is also a theory that dinosaurs ate many flowering plants, and there were many toxins in these flowers. The dinosaurs ate a lot, so they died of poisoning. The evidence is that flowering plants began to appear at that time.

4. Others ingeniously said that it was because dinosaurs, a huge animal, ate too much and kept farting, releasing a lot of methane gas into the air. Because they are too numerous and have a long life span, they have destroyed the ozone layer of the earth and caused a devastating climate.

Some people even say that it is the result of aliens hunting on the earth, because they think dinosaur meat is particularly delicious. The evidence is that the dinosaur bones they found in the North Pole were marked by laser cutting.

Some experts say that dinosaurs died of cancer because the ozone layer of the earth was destroyed and the sun was shining directly.

7. Volcanic eruption said that volcanoes changed the climate of the earth, and dinosaurs died out because they could not adapt to the new climate.

8. Asteroids hit the earth, causing the climate to cool down, freezing many plants to death, cutting off the food source of dinosaurs and causing them to become extinct.

9. The asteroid hit the earth, causing two fires on the earth, and all the dinosaurs were burned to death.

10 dinosaur sperm variation, dinosaur eggs can not hatch small dinosaurs.

The above generally accepted theory is the meteorite impact theory. As can be seen from the above, the theories of experts are varied, strange and quite confusing. The arguments of these experts have a common feature, that is, they are not very logical, are not dominated by logical commanders, and do not like to use logic to interpret. Most theories are that blind people touch elephants. It should be pointed out that some theories are simply catching shadows, speculating casually, and almost saying whatever they want, which simply cannot stand a rebuttal. But these absurd views and theories can often be seen in the media, because they are scientists, they speak scientific language, and what they say is reasonable.

Third, scientific theory needs unified logic to command.

Although the theories of experts are varied and interesting, they do not involve the personality of every scientist. Because the above problems are by no means the problems of any one person, nor can they be blamed on any one person, but the problems of the scientific community, because science and the scientific community have no unified logic to follow and can only say their own reasons. I think science needs unified logic to command, just like decimal mathematical logic. In the decimal category, as long as you can come up with convincing mathematical logic reasoning, even those who oppose your point of view have nothing to say. Unified scientific logic, unified scientific logic, what is it? What is the theory? Of course I know, but this theory can't be said casually. It is not that I am stingy, but that many people are against me. Because the preparation for the birth of this theory has not been done well, it is natural for many people, especially in the scientific community, to raise it so high, especially in our country.

Fourth, logically reason how dinosaurs became extinct.

The author has always advocated that theoretical research must be substituted into logic for comprehensive and rigorous reasoning and systematic thinking. If a link in the whole theoretical system fails logically, it may be completely overthrown. The extinction of dinosaurs is a natural and normal explanation for the logic of life on earth. If dinosaurs don't die, how can new species be born? How does the alternation of old and new species proceed? Has there ever been anything in the world that only produces eternal life? This is the simplest philosophical common sense. The extinction or emergence of a species is bound to be closely related to its living environment. In the dinosaur era, there were no man-made pollution factors, so we naturally thought of natural factors, that is, the natural conditions such as climate and temperature of the earth. This requires further research on the history of the formation of the earth, dating back to the interpretation of the solar system, and even dating back to the formation of the Milky Way and the origin of the universe.

Readers should not underestimate these problems, which are the logical links of the universe and the life deduction in the universe. Without these links, theoretical research will lose its roots, roots and roots. It is a theory without foundation, and it is easy to collapse. In the present words, it is easy to be denied. The author has always advocated that theoretical research must be substituted into logic for comprehensive and rigorous reasoning and overall consideration. If a link in the whole theoretical system fails logically, it may be completely overthrown. Explaining how dinosaurs died, starting from the deduction of the solar system, can basically meet the needs of theoretical elaboration in this paper.

1994, I put forward my own views on the reasons for the extinction of dinosaurs. In my opinion, the extinction of dinosaurs was caused by the natural change of the earth's climate, the cold climate and the failure of dinosaur eggs to hatch into small dinosaurs, which had nothing to do with the impact of asteroids on the earth. This is a logical deduction. Especially when this view was formed, the author did not know that there were many fossils of dinosaur eggs. Later, I saw a lot of reports of dinosaur eggs unearthed in Henan, Sichuan and Yunnan. With so many dinosaur fossil eggs as evidence, it is even more obvious that my conclusion is correct.

5. The theory of dinosaur extinction can neither be proved nor falsified.

As for the theory that an asteroid hit the earth and led to the extinction of dinosaurs, I think it can neither be proved nor falsified. Therefore, this theory is meaningless and can only cause people's ideological confusion and unnecessary arguments. I also put forward many reasons to refute that even if an asteroid hits the earth, it will not necessarily lead to the extinction of dinosaurs, because many animals of the same age as dinosaurs still survive, which is evidence. I have sent the paper to the relevant authoritative media, but I have never received their reply.

1996, my paper was published in the fifth issue of UFO Exploration, which basically expressed the root cause of dinosaur extinction. However, due to the limitation of space, some issues related to the extinction of dinosaurs have not been published. Papers on these related issues were later published in Tsinghua Academic Salon Life Science Forum, World Wide Web Forum, Tian Fei Netscape Exchange Station, and Science Forum.

Six, the same theory

1998, I saw a piece of news published by Jing Li in the eighth edition of Workers' Daily, which was "A New Explanation of Dinosaur Extinction". This news introduces the research results of Leonard Ginsburg, a paleontologist at the French Museum of Natural History. Lun believes that the sea level dropped significantly 6500 years ago, which led to the change of the earth's temperature and lost the original natural conditions for dinosaur reproduction. So at that time, the largest species on earth slowly became extinct.