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 A branch of  Dinosaurs  turned into birds, which is a conclusion recognized by the world scientific community. But under this big framework, there is a question that has always plagued paleontologists: How can a huge dinosaur turn into a light bird? How do they learn to fly? If there is a problem, someone has to solve it. This is exactly what scientists do. In the past few decades, scientists have put forward many hypotheses, but no matter what, to answer these questions, we must first find evidence of fossils, and a large part of our work is to find  Dinosaur Fossils . For those engaged in paleontology, the geological map knows which areas of the earth's surface may have which types of fossils. Most of the time, in the no man’s land of the Gobi Desert, our daily work is very simple. We go out in the morning and look for the target rocks with our eyes open. We may walk 10 kilometers or 20 kilometers a day. This long search is the most important thing for us to find ...

 In the past, some textbooks and popular science publications often described  Dinosaurs  as dull animals. But after years of research, paleontologists have proved that dinosaurs are not dull fools, but the most agile and energetic species on the planet at that time. Some people think that the brain size of a dinosaur is too small compared to its body. In fact, the growth rate of the dinosaur's brain is only about 2/3 of the growth rate of the body. In other words, the size of the brain changes with 2/3 of the body size. In the case of equal weight, reptiles have a smaller brain than mammals, which is the mark of biological evolution. Stegosaurus Paleontologists have measured the "brain mass quotient" of dinosaurs. They first calculated its weight based on a relatively complete dinosaur skeleton, and then calculated the brain mass according to the formula that the brain mass changes with the body size to the power of 2/3. Figures, and then further calculate the "ment...

  Extinction Hypothesis 5: Continental Drift Theory According to geological research, in the age of  Dinosaurs , there was only one continental plate on the earth at that time, namely the Panga. Later, due to changes in the crust, the Panga formed the current six major plates through splitting and drifting. Changes in climate and environment have led to the extinction of dinosaurs. The process of continental drift is a very slow process. The Panga began to split in the Triassic, and did not split to form the current six plates until the late Cretaceous. During this period, dinosaurs have always ruled the earth and have been on the continents. In the case of drifting, the dinosaurs were intact from the Triassic to the Cretaceous, but collectively perished in a short period of time in the late Cretaceous. The theory of continental drift obviously lacks strong evidence. Extinction Hypothesis 6: Species Struggle In the late Cretaceous, the first small mammals appeared. These anima...

  There are many theories about the reasons for the extinction of dinosaurs, some that sound very reliable, and others that sound like fantasy, but before the truth is revealed, everything is possible. After all, human beings have too little exploration of the universe. The  Dinosaurs  went extinct at the end of the Cretaceous period 65 million years ago, and many other large animals were extinct together. Because dinosaurs ruled the earth for more than 160 million years, and suddenly disappeared in a short period of time at the end of the Cretaceous, this has to arouse all kinds of speculations by humans. The whole world is eager to learn the truth about the demise of dinosaurs. Extinction Hypothesis 1: Meteorite Impact Theory This is currently the prevailing view. The process is as follows: an asteroid with a diameter of about 10 kilometers collides with the earth at a speed of 40 kilometers per second, and the impact caused by the earthquake is equivalent to 10 The imp...