The Dou Yi brothers looked at the big screen, eager to get into the big screen immediately to save these people. However, Liu Yu told them that the location of these people was farther away from them than those at the Tutan Military Academy, and unless they could be teleported over now, they would not be able to save these people at all. So now they can only pray silently in their hearts, hoping that a miracle will happen to these people.

Looking at the expressions of the Dou Yi brothers, Liu Yu could only track the images on these people, at least so that their brothers could know the final result.

Observing through satellite footage, the situation of these people is already very dangerous. They are all in a semi-comatose state now, and if it weren't for their deep enough skills, I'm afraid they would have sunk to the bottom of the sea. Although they can still float on the surface of the sea, they have no ability to choose the direction they are heading, so they can only drift forward with the currents on the surface of the sea.

The two Dou Yi brothers stared nervously at the big screen, their mouths kept chattering, their finger joints had been clenched white, gurgling, and the two of them still didn't realize it.

"Sharks!" Li Jing exclaimed, pointing to the big screen and said in a trembling voice, "Look, a group of sharks are swimming towards them!"

The Dou Yi brothers looked at Li Jing's fingers, and couldn't help shouting in unison: "The shark is coming, you swim quickly! It's too late!"

But no matter how loud their shouts were, those few people could not hear, let alone react.

In the distance, dozens of white waves were approaching the men at high speed, which was the trail left by the shark on the surface of the sea with its triangular dorsal fin. The speed of the sharks in the water was as fast as lightning, and when Li Jing found them, they were still more than ten kilometers away from those people, that is, they were already circling around those people.

After a few trials, the sharks had decided it was a hearty meal waiting for them to enjoy.

"Don't!" Brother Dou Yi made a terrible sound, slowly closed his eyes, and couldn't bear to look at it anymore.

The sea was blood-red, and the jagged teeth of the shark easily cut several people into countless pieces, and they gathered together, constantly churning and fighting for the stump and severed arm floating on the water, and then divided and ate it.

Even through the picture, Liu Yu seems to be able to smell the strong smell of blood.

Quickly zoom out and turn to something else. Liu Yu patted Dou Yi's shoulder: "Brother Dou, you don't have to be too sad, you can only blame them for their bad luck." Fortunately, they just went back early, and they didn't really die. ”

Brother Dou Yi was still in grief, and the others couldn't talk about anything anymore, so they could only watch the satellite pictures without saying a word. As Liu Yu said, the chances of discovering other teams were too slim! Of course, they can't check it meter by meter, and I'm afraid they won't be able to see it all in their lifetime.

Turning off the computer, Liu Yu looked at the others: "We've been here for a long time, let's go inside and have a look." ”

The six men left the hall through another door and entered another hallway. I didn't go far in this road, and there were seven or eight forks in the road.

"Which way should we choose?" Liu Yu stopped at the fork in the road and asked the others.

For a while, all the people didn't know how to answer, you look at me, I look at him, and I couldn't make a decision for a while.

"I think so, we might as well go our separate ways. Liu Yu thought for a while and said, "Each of the six people chooses a path to explore, and they won't hang themselves on a tree." ”

The other five people thought about it and felt that it was all there was to it. Although Liu Yu knew more than all of them, it was a waste for them to not be able to explore more places when the six of them got together. It's so big, and the more places they explore, the more they will gain.

Once this question is decided, it's time to choose the path forward. Of course, he will not be the first to choose this plan proposed by Liu Yu. However, such a choice also depends on luck, because no one knows where each road leads, and if there is nothing in front of them, then there is no one to blame, and you can only blame yourself for too much of your idea.

"Now that we've all made our choice, let's go. Liu Yu glanced at the others, "No matter what kind of discovery there is, after a day, we will still meet here." ”

Everyone nodded, didn't say anything more, and walked along the path they chose, and soon disappeared at the end of the road.

Liu Yu chose the leftmost road, which was no different at the beginning, still with a white roof, white walls and black ground. After walking for a few minutes and turning a few corners, a metal door appeared in front of him.

The door was hidden and not completely closed, as if the people inside were in a hurry when they left, and they didn't have time to close the door properly, so this situation would form.

Fortunately, the door was not locked, otherwise Liu Yu really didn't know how to open it. This door is more than one meter thick, and there are at least more than ten anti-theft devices that Liu Yu can identify. Like digital combination locks, fingerprints, voices, pupils, brain waves, DNA, face shape comparison, body shape comparison, weight detection, grip strength detection, etc., etc.,

There are so many anti-theft devices on one door, which shows how important this place is, and Liu Yu can no longer suppress the excitement in his heart.

Gently pulling the door open, the first thing Liu Yu saw was a huge electronic star map. Against a deep black background, there are colorful starlight. Every planet, every constellation, every nebula is condensed in this star map.

Looking at this star map, Liu Yu seemed to have forgotten where he was, and involuntarily walked over, his eyes staring at it tightly, as if he was looking for something. After a while, Liu Yu sighed and looked away from the star map.

Liu Yu looked around, it was a large room, and the white roof wall formed a strong contrast with the star map with the main body black. In a room of more than 100 square meters, there is very little furniture and everything. Except for the electronic star map that filled the entire wall, there was only a small desk, a chair, a large bed, and a strange-looking thing.

The desk was placed against the wall against the door, and there was only one computer on it. The queen-size bed sits behind the desk and is covered with new linens. And that strange-looking thing was placed in the corner.

The room seemed to be inhabited all the time, because the desk, the chair, the computer, the sheets, the strange thing, and the walls on the floor were all cleaned and there was not a single dust left on it. Could it be that there are still people living here? Liu Yu felt a little incredible, Xuanbao didn't say that there were any other people in this space, so how could this place be so clean? Liu Yu couldn't help but think of that hall again, it seems that the hall is also like this, right? But he didn't notice this at the time, and now he can't remember it clearly.

Sitting behind the desk, Liu Yu turned on the computer on the desk. Looking at the familiar boot picture, his heart throbbed for no reason, as if he had been touched by something, plucking the heartstrings in the depths of his soul.

The wallpaper of the computer is a blue planet, Liu Yu intuitively thinks that it should be the earth star where he lives, but I don't know who owns this computer, where is this space, and what kind of relationship is it with the cave he discovered?

On the desktop of the computer, there are several folders neatly arranged, and under each folder there is a line of small print that writes the contents of the files stored in the folder.

Liu Yu opened a folder called Evolutionary Theory, which contained three documents, namely: the history of human evolution, the history of the evolution of the beast race, and the history of the evolution of the demon race.

Liu Yu once had some understanding of the term evolution theory in a cave in the Malayas Mountains, but it was relatively general, and only gave a simple explanation of this term, without specific elaboration. It is a set of theories used to explain the phenomenon of variation between generations, and refers to the theory of the gradual evolution of organisms from low to high, from simple to complex. There are two main ideas: first, species are mutable and organisms are evolutionary. Second, natural selection is the driving force behind biological evolution.

The three documents in front of me seem to be the analysis and study of the development process of the three intelligent beings on the Earth, but I don't know what kind of descriptions are in these three documents, and what conclusions are drawn?

Liu Yu first opened the document on the history of human evolution and took a general look. This history of human evolution is so long that the computer shows that it is 15.3MB in size.

If you start from scratch and read it word for word, there will definitely be no such possibility in a day's time, and it is impossible for Liu Yu to spend all his time on this, so he just chooses some key points first, or the content he wants to know to browse. He then copied all three documents to his satellite phone and kept them for later study.

In this article, there is no clear description of the origin of human beings, except that humans began to appear on the planet about 1.5 million to 2.5 million years ago. And the word "now" of "from the present" did not give an explanation, Liu Yu can't know when this article came from, he can only calculate it according to his current time, anyway, he knows that the history of the Dragon Empire is more than 3,000 years, even if it goes a little further, compared with 150~2.5 million years, it is nothing.

The evolution of human beings is divided into four stages, and the first humans are called "Homo humans", that is, people who can make tools. About 20~2 million years ago, "Homo erectus" appeared, and Homo erectus knew how to use fire and could use more delicate tools, which is called Acheeri culture.

Early Homo sapiens appeared about 30,000 to 250,000 years ago. Late Homo sapiens is about 10,000 to 50,000 years ago. Homo sapiens was able to make more advanced tools, art appeared, fire was made artificially, and matriarchal clan communes were born.

The history of human evolution is over here, I don't know if the person who wrote this article is not interested in writing it anymore, or if he left this place without finishing it, Liu Yu doesn't know.