Chapter 727: The Five Great Extinctions of the Earth

Zhang Yi looked at these murals and watched them with relish.

"I'm rubbing, a group of triceratops are beating each other!"

"Lie down, the three-headed Tyrannosaurus rex is fighting each other!"

"Ni Wang Ma, Canglong and Canglong are biting each other!"

"I ......"

"I'll rub your sister! Just a few murals, don't you want to be so excited!? Teacher Cang opened his mouth and scolded.

"Dinosaurs, fights, I've never seen them before!" Zhang Yi said excitedly.

"Alas...... Poor mountain cannon baby! Teacher Cang shook his head and said regretfully.

As I walked forward, there were many, many dinosaurs in the mural, so dense that the mural was almost overloaded.

And in the next step, a large light appeared in the sky in the mural, and there were many small lights next to this big light.

These rays of light are meteorites, the largest rays are the most important body of the meteorite, and those small rays of light are the small meteorites that have been stripped out of the meteorite.

The next mural is clear, because meteorites fell, the dinosaurs went extinct, and then the mammals went on to a grand scale.

Then, among these mammals, the ape-man group stood out in the mural, and in a short period of time developed a variety of civilizations, standing on the pinnacle of all animals in an instant.

And the mural ends here, and if you look down, although the corridor is not at the end, the murals behind it are all blank and there is nothing.

To be honest, Zhang Yi only understood the paragraph after the dinosaur when he saw this, and he couldn't understand it at all before the dinosaur.

However, it has always been Zhang Yi's good habit to ask questions without shame.

"What's painted in front of this mural?" Zhang Yi asked directly, and he didn't specifically ask anyone, anyway, in addition to Rhubarb and Zhang Yi, there must be two people who know.

"The five mass extinctions in the history of the earth...... the scorpion said lightly.

"Five times!?" Zhang Yi snapped his fingers and recalled the murals he had seen, as if there were almost five times.

"The first mass extinction is also known as the Ordovician mass extinction, the second mass extinction is also known as the Devonian mass extinction, the third mass extinction is also known as the Permian mass extinction, the fourth mass extinction is also known as the Triassic mass extinction, and the fifth mass extinction is the most famous, which is called the Cretaceous mass extinction or the dinosaur mass extinction!" The scorpion snapped his fingers and said one by one.

"Uh...... What's the point of this mural!? Zhang Yi couldn't understand what the scorpion was talking about, so he had to turn the topic to the other side of the mural.

"How do I know! Ask the person who carved the mural! Ask me what I'm doing!? The scorpion rolled his eyes and said speechlessly.

Zhang Yi:(°ー°〃)

When the scorpion was choking Zhang Yi, Mr. Cang stared at the mural of human prosperity at Zhang Yi's feet, and his eyes flashed with a thoughtful look.

This mural is not a statue of modern technology, but a scene of human beings changing the appearance of the land, growing food, and building houses.

As for why it is said that human beings stand at the peak of all animals, it is because there are many animals of various colors in captivity on the mural, and some animals that cannot be kept in captivity are squeezed to the edge of the mural, and there is only a small space.

To put it bluntly, this mural is a painting with human beings as the protagonists.

"Could it be...... Could it be ...... Impossible...... If that's the case......" Mr. Kura frowned and muttered inwardly.

"Keep walking!" Zhang Yi didn't notice Teacher Cang's abnormality, twisted his head, and walked towards the depths of the corridor first.

At the end of the corridor, a stone statue similar to a medicine tripod stood in front of Zhang Yi and his party.

This stone medicine tripod is depicted with the pattern of an old man collecting medicine, and Zhang Yi knew that he had not come to the wrong place as soon as he saw this stone medicine tripod.

"This medicine tripod ......" Zhang Yi raised his hand and touched this stone medicine tripod, feeling the touch of this stone medicine tripod.

After a while, Zhang Yi withdrew his palm and did not open this stone medicine tripod, because this stone medicine tripod was just a simple statue, unlike the medicine tripod under Wuxiang, which could be opened from above.

"Let's go!" Zhang Yi said softly, without any expression, very calm.

After bypassing the stone medicine tripod, there is a passage hole behind the stone medicine tripod, and this passage hole is a downward staircase.

"How many layers are there in this ruin,......" Zhang Yi couldn't help but complain.

Originally, I thought there was something behind this stone medicine tripod, but it turned out to be a staircase again.

"Just take care of how many floors it is, just go." The scorpion lifted its feet and walked down.

Zhang Yi didn't hesitate, and also raised his legs to follow.

This staircase, like the previous one, spirals down. Zhang Yi didn't feel anything at first, but later he found some phenomena.

Although this relic is protected by a formation, and ordinary things can't get in, there is still dust or something, especially this kind of ruins with a long history, which must have accumulated a lot of dust.

What Zhang Yi found was that there were a lot of messy footprints in this dust, which had already existed before Zhang Yi and the scorpion came down.

For these footprints, Zhang Yi knows very well who they are.

Zhang Yi raised his head and looked at the scorpion's pretty back, if he hadn't encountered the scene when Rhubarb was seriously injured, Zhang Yi would only think that the scorpion had become like this just because he didn't like his original appearance, but now that he thinks about it, it's not like that at all. At that moment, Zhang Yi felt that the scorpion's back was very weak, as if it was carrying a lot of things.

“…… Ah........." When Zhang Yi wanted to say something, Mr. Cang on his shoulder patted Zhang Yi's cheek and reminded him.

Zhang Yi turned his head and looked at Teacher Cang, only to see Teacher Cang gently shaking his head at Zhang Yi.

Since seeing those long murals, Mr. Cang has a very bad speculation in his heart. On the one hand, it is because this is the belief of a scorpion, and it is useless to let Zhang Yi say anything, and on the other hand, Mr. Cang is selfish and wants to continue to go down, find more clues, and confirm the speculation in his heart.

Zhang Yi moved his lips, but he still couldn't speak, so he could only silently follow behind the scorpion.

Because Zhang Yi knew that the scorpion had something to do, Zhang Yi was not qualified to persuade others, he only hoped that the scorpion would not want to go too far, otherwise he would only meet in the end.

Without saying a word all the way, he continued to walk down, and soon came to the end of the stairs, where what appeared in front of Zhang Yi and the others was not a standard building, but a karst cave.

Strangely, the cave is still bright, and when you look ahead, you can barely see the end.