Once, there was a famous question on the Internet, that is, if intelligent life is really easy to be born, then why did the earth, which has a history of billions of years, eventually evolve only human beings, an intelligent life that can actively think and look up to the starry sky?

Other animals that once thrived on Earth, and animals that still thrive on Earth, have large populations but have not evolved life?

For example, among arthropods, the most powerful insects. Its own neurons are abundant, and the real IQ is not too low. It's not much different from some of the lower mammals.

If we talk about the insects of the phylum Arthropods, the structure of neurons is not suitable for the birth of intelligence. Far inferior to vertebrates. The dinosaurs, then, who ruled the earth for 170 million years, were vertebrates with huge populations. Why hasn't such a population evolved intelligent life that can think actively and look up at the starry sky?

Later, after repeated research by scientists, it was found that according to theoretical inference, dinosaurs were not unable to evolve to give birth to intelligent life, but unfortunately, there was some luck. Human beings can be born, it can only be said that human beings are a lucky person who is beyond many ordinary lives in the history of natural evolution!

According to the natural law of the jungle between heaven and earth, the main direction of evolution should be the body, not the brain. The close-quarters combat of life is completely violent. Even if the gorilla, a close relative of human beings, can dominate a certain jungle, it relies on its super strong physique like in the movie "King Kong". As for IQ, it can only be used as an aid and embellishment.

In other words, human beings have been able to evolve to the point where they are today, although the path can be followed, but for the natural world, it is completely an accident of the failure of the regulatory system. Because of this little accident, human beings will regard the entire earth, the sky and the sea, as their territory. Even in the future, the entire starry sky, as well as everywhere as far as the eye can see, will be their own territory!

As the saying goes, our goal is the sea of stars!

From oneself to others, even on the stars outside the sky, life really appears. The possibility of intelligent life itself is also very small. Even if it does, it will be as slow as a reptilian dinosaur.

According to biologists' research on fossils, before the appearance of dinosaurs, there were lizard-type species on the earth -- the Silothian lizard! Although these primitive reptiles were not as large as the later dinosaurs, they also had certain advantages in natural competition.

These reptiles are the prototypes of dinosaurs. At this time, it was 363 million years ago and 290 million years ago in the Carboniferous period. After the Carboniferous period and the subsequent Permian period, reptiles gradually became rich and diverse, and their appearance already took on the appearance of dinosaurs.

And in the late Permian, there were two important branches in the evolution of life, and one of them was the dinosaurs. The other branch is mammals. And in that era, reptiles, that is, the evolution of dinosaurs, were one step earlier and more advantageous.

Therefore, dinosaurs, an animal, have ruled the earth for three generations since the Triassic period!

That is—the Triassic period from 245 million years ago to 208 million years ago, the Jurassic period from 208 million years ago to 114 million years ago, and the Cretaceous period from 114 million years ago to 66 million years ago!

These three generations, taken together, are a whole geological epoch - the Mesozoic!

It was not until the end of the Cretaceous Period, 66 million years ago, after the asteroid hit the earth, that primitive mammals could be regarded as having their beginnings! Since then, they have flourished and multiplied. Eventually, primates evolved, and humans evolved!

In terms of evolutionary time, dinosaurs took much more time to evolve intelligent life than mammalian life. It's a pity that this dinosaur family, at the beginning, evolved towards a huge body with sharp teeth and claws. The most famous dinosaur is none other than the Tyrannosaurus rex. It wasn't until later that the population multiplied more. There were many kinds of dinosaurs, and only then did they really give birth to a race that evolved in the direction of the brain.

One of them, only preserved in ancient legends. Yun Lei had only heard of it from the classics, but he had never really seen it at all. The intelligence gained by this dinosaur did not evolve naturally, and it cannot be passed on through genes. It was through the introduction and absorption of the aura of heaven and earth and the continuous transformation that he finally got rid of the innate racial limitations and gained wisdom.

This is the dragon clan! In essence, it is nothing more than reptiles, or spirits born after the dinosaurs have been cultivated.

And the other one is the one who is now appearing in front of Yun Lei's eyes!

According to the archaeological findings of scientists, 65 million years ago, dinosaurs did not have the opportunity to evolve into intelligent life, and one of the dinosaurs went in the direction of brain evolution. If it weren't for the asteroid impact on the earth, after 65 million years, this dinosaur would have evolved into intelligent life!

That is, to be afraid of people!

And this dinosaur that is going in the direction of brain evolution is the toothed dragon in front of Yun Lei!

Paleontologists, for creatures like dinosaurs, use the evaluation criterion of "brain quotient" to evaluate their intelligence level.

The data of brain quotient is very cumbersome. These paleontologists need to calculate the approximate weight of this dinosaur based on some relatively complete dinosaur skeleton fossils. This is not easy in itself. After all, many species of dinosaurs are not even complete in terms of fossil bones. It is even more difficult to calculate how many catties of this dinosaur even the belt meat was during its lifetime according to these fossil bones that are not too complete and the clues left on the fossils.

And after getting the weight data of the dinosaur itself.

Paleontologists also need to obtain the average brain size of reptiles according to the relationship between the brain size and weight of living reptiles. And the relationship between the brain size of a reptile and the weight of the body is - the average brain size of a living reptile, and the size varies with the power of one-third of the body size (weight)!

Finally, it is also necessary to use the discovered dinosaur cranial volume, that is, the volume of the skull cavity indirectly measured according to the relatively intact skull of the dinosaur. Indirectly measures the volume of the brain, i.e., the volume of the brain. By removing the average brain size of reptiles, the brain size quotient of dinosaurs can be calculated.

The data obtained in this way, although extremely troublesome, is relatively accurate!