After listening to Fang's analysis, the sailors blew up.

[Damn, isn't it invincible underwater?] 】

[This is also too strong, it turns out that the old side dealt with it before after it was weakened.] 】

[How do you catch that?] Seduction? 】

[You can only seduce, right? It seems to have come out easily last night]

Not only that, Professor Gu Qingyuan's next sentence made the sailors realize that the situation was more serious than they thought.

"The fact that this creature still exists so far shows that it has long since adapted to the environment here, and it is still an area like Qaidam that has been almost undisturbed by human activities, which means that it has no possibility of functional extinction!"

"There's a population here!" Bi Fang blurted out and directly said the second half of what Gu Qingyuan wanted to say.

But the audience is puzzled, what is functional extinction?

In the face of the barrage of questions from water friends, Bi Fang made a simple explanation.

"For any species to survive, there must be a minimum population size to cope with accidental changes in individual birth and death, genetic drift, a series of random changes in the environment, and various catastrophic events."

"Below this number, the species themselves will become functionally extinct! They can't reproduce on their own! ”

"Functionally extinct species are therefore called 'zombie species,' and the last few remaining individuals are called 'living dead.'"

"The most famous example is probably the lonely George, and even if he is still alive, the Pinta Island tortoise species is actually extinct."

There are many such species in nature, just like the Siberian tiger today!

If there is no human intervention, they will reproduce with other tiger populations, no matter how good the environment in which they live, there will be various problems due to inbreeding, and they will become extinct naturally within a few decades!

In other words, there are many monsters like last night, and there are many more under the waterhole!

Just when the sailors thought that the danger of this matter had come to an end, Gu Qingyuan did not let them go and threw a bomb again.

"I'm afraid it's not all, Tiktalik here may be more dangerous than it was 300 million years ago, do you know the famous fossil creature of Qaidam, Wu's Offering Fish?"

"Understand a little, a fish with incredibly thick bones, if you change to other fish, it will be a disease for a long time." Bi Fang wiped the sweat from his forehead.

The wilderness survival skills given to him by the system are useless at the moment, because the knowledge of plants and animals it gives is basically unextinct creatures.

This creature, which has been extinct for millions of years, has long gone beyond the scope of knowledge of survival in the wilderness, and it is all dependent on the accumulation of previous lives.

"That's right, the bones of the Wu's donor fish are incredibly large, and the only fish similar to it is the thick-tailed medaka, these two creatures lived in a similar environment at that time, both are the products of environmental aridification, although there is no conclusion yet, but we have always suspected that the thick bones of the Wu's donor fish are related to this environmental change."

"Let's put it this way, I think the same changes will probably happen to Tiktalik, who has also been through this journey."

Gu Qingyuan said his speculation and gave his little advice at the same time.

"If it is impossible to capture it alive, I recommend that you try to use a blunt object to attack when you encounter danger, or look for the junction of the bones, otherwise, it may be difficult for an ordinary knife to cause damage to it."

[What do you mean, why don't I understand, what does this have to do with what kind of fish does this have? 】

[I don't know how to add one, the old party explains, your conversation is too high-end]

[At the beginning, the teacher asked me to study hard, but I didn't listen until I entered the factory to work, and I didn't regret it, but now, I can't understand the live broadcast with tears in my eyes. 】

[Don't cry, those who graduated from 211 are also separated by this bewilderment]

"To put it simply, the fish here may be stacked."

If it is really the same as what Gu Qingyuan said, then the bones of Tiktalik here are probably much harder than imagined, compared to the original, is it just a layer of armor?

[If you said that earlier, wouldn't it be over......]

[Damn, how do you fight this?] The other party is out of his mind, and he returns the dagger of the old party! 】

[Why don't you give up, isn't it fragrant to survive? ] 】

"But there are still many opportunities to survive and discover new living fossils, which may be the only time in a lifetime."

Bi Fang was not moved at all, but was eager to try, he went straight to the waterhole, because it was daytime, the light was abundant, the waterhole was very clear at the moment, and the surrounding rocks could be seen clearly more than two meters down.

What does an underground cave really look like?

What kind of creatures are inside?

These Bi Fang were very curious, he held the flying drone in his arms, pretended to disassemble the camera, in fact, let the live broadcaster reshape, into a head-mounted camera, and stayed on his head.

"Don't you want to see the living conditions of this creature? What does it eat? Range of activity, food web composition, is it a cluster? What are the habits? ”

Yes, of course.

Gu Qingyuan behind the screen nodded desperately, but when he nodded, he was suddenly stunned.

Gu Qingyuan scratched his gray hair, feeling as if something was wrong.

Wrong.

This is not the case.

Didn't you say that it was good to catch a live Tiktalik?

As long as you do the same as last night, make a little bait or something, and trap Tiktalik ashore, how can you know so many things?

But when he saw Bi Fang start to undress, an electric current suddenly connected Gu Qingyuan's brain, and the human brain went down.

It took a while to reconnect to the Internet before it burned out.

Depend on!

This kid is going to go into the water and catch it!

[Never! 】

How can you go into the water and catch it?

Isn't this the old birthday star hanging for a long time?

But the barrage sent out by Gu Qingyuan has long been drowned in the sea of bullets.

Bi Fang didn't even look at it.

"Since there are such huge creatures in the underground river, there must be more than this small exit, otherwise the amount of oxygen is a problem, so I think there should be many outlets under the waterhole, and there may even be an underground world."

Stripped of only his pants and underwear, Bi Fang put all the extra clothes into his backpack, and he lay on the edge of the waterhole to observe carefully.

I don't know if it's an illusion, but he always feels that there is a fishy smell in this pool.

"This is a pile of talc, because of the wind sand, there is a lot of sand underground, there should be other passages below that connect to the underground river, this is a water hole!"

"Water caves are much more dangerous than land caves, and if you get lost underwater, you can easily drown, so don't wait until you don't have enough oxygen to get back to the entrance, it's too late."

"If this happens, don't panic, the more panicked, the greater your oxygen consumption."

"The only thing we can do is to reduce our consumption, to follow the flow of water, and where there is flow, there must be passages, and with the flow, we can also reduce oxygen consumption."

Because he can't speak when he gets into the water, Bi Fang has to make the key points clear to everyone first.

Then, he took a few deep breaths, put on his backpack, took his camera, and jumped straight into the waterhole!

Just heard the sound of "bang", and the audience watched Bi Fang jump into the deep pool.

Following the camera's point of view, the audience only felt that it was pitch black under the waterhole, and in the closed environment, many sailors had begun to have difficulty breathing.

Silence, deathly silence.

Unknown monsters lurk in the deepest depths, just waiting for their prey to fall into the net!

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