Author: Don’t add mango

It is said that after Chen Jing entered the underground river, he headed towards the Gaoqi volcano.

There was no light in the dark river. If Chen Jing hadn't had something like a bioradar, he would have lost his way in the underground river.

After swimming for about half an hour, Chen Jing encountered an intersection.

The water flowed quietly without any warning.

Although the bioradar still has a detection range of 500 meters, Chen Jing doesn't know where these two intersections lead.

There seems to be no direct connection between this underground river and the Gaoqi volcano.

Chen Jing chose the path on the right.

That feeling is guiding you, and only when you turn to the right will you get results.

Another ten minutes.

Something strange was finally detected in the bioradar. The space ahead was vast and the river flow slowed down.

Chen Jing immediately accelerated his swimming forward.

After passing the underground river exit, Chen Jing came to that vast space.

This is a huge underground lake!

The bioradar quickly detected all the conditions of the lake and put everything into Chen Jing's mind.

There are living things here.

The size is not big, but it makes Chen Jing truly feel what the tenacity of life is.

Due to the lack of light, the creatures in the lake have degenerated their eyeballs.

The lack of food sources makes their metabolism extremely slow.

Chen Jing could hardly see anything here that could be called food.

By those small insects on the rock wall that are not even the size of a scale?

That would only happen if the little insects' feet slipped off.

In the water, Chen Jing couldn't imagine how these blind fish and shrimps survived.

Maybe who is more hungry?

But what about their reproduction?

With respect for life, Chen Jing finally just observed it and left.

This fragile ecosystem cannot withstand his tampering.

Official login.

Chen Jing stepped on the cave floor and took a careful breath.

He couldn't guarantee that there would be enough oxygen here.

However, the result was very good, and the oxygen content exceeded Chen Jing’s imagination!

Of course, this does not mean that the oxygen content here is higher than outside.

"Since there is so much oxygen, this cave must be connected to the outside world." Chen Jing looked around.

But the so-called "connected place" is a bit unexpected.

There are several wind tunnels that are only half the size of Chen Jing.

Even if there were tools, it would be impossible to cut through.

After taking one look at the wind tunnels, Chen Jing left.

The entire underground space is huge, and this place is just one of the caves.

After walking into this vast underground, you will find that there is no luminous material and no sound.

Except Chen Jing.

Chen Jing was pacing in this underground space and became the only source of sound.

This sound also alarmed a large number of small creatures.

A group of cave spiders, which are round and ball-shaped, with downy hair and eight slender legs, are gathering.

The cave spiders were attracted by the movement caused by Chen Jing. They had no eyes and gathered curiously towards the place where Chen Jing walked.

Even Chen Jing himself didn't know.

Any crumbs dropped from his body are a feast for these tiny cave spiders.

As he went deeper, a huge underground ecosystem began to gradually unfold in front of Chen Jing.

Bacteria, as the most inconspicuous organisms here, play the most important producers in the entire ecosystem.

The vast majority of bacteria here can produce energy by absorbing inorganic salts and specific substances on the rock wall.

Some of these bacteria can even emit light.

Although a single luminescent bacterium has no effect, when colonies of bacteria glow together, it makes a great contribution to this underground space.

The blue shimmer is connected into a sheet, which is sometimes bright and sometimes dim along with the ecological activities of bacteria.

What a wonderful feeling.

The emergence of light supports simple single-celled plants - algae.

These algae, which come here with the water flow, release oxygen during photosynthesis and become nutrients at the same time.

The excellent reproduction ability gives those underground creatures a richer food source. Even because animals in the water have slow metabolism and do not eat much, the algae in the water can also become a food source for some insects living on the shore.

There are producers, consumers, and naturally decomposers.

In addition to bacteria, fungi also act as decomposers.

Fungi are also a kind of food.

Occasionally, there are plants that follow the underground river and come here. If they can survive, they will survive tenaciously. If they cannot survive, they will become nutrients in this fragile but tenacious ecosystem.

Chen Jing looked at the glimmer of light and carefully crossed a shallow ditch.

Unless there are special circumstances, he does not want to cause damage to these creatures that he admires.

Going further, another underground river appeared.

It was not the kind of completely underground river that Chen Jing entered at the beginning.

Although this underground river is not big, a canoe can still be rowed on the river.

And the water was not deep, only reaching Chen Jing's chest.

The source of water should be in front.

The water flow here is not large. It seems that this is just a tributary of the water flow in front.

The water flows by.

There are no living creatures visible to the naked eye in this river.

The closer you get, the louder the roar becomes.

You can tell by the sound that it is a waterfall!

The gap caused by geological activities has caused the underground river here to form a waterfall.

The water fell from above due to the force of gravity, and white water vapor filled the entire waterfall. Chen Jing thought it was because of the waterfall at first.

But as he got closer to the waterfall, the temperature of the water began to rise!

Chen Jing could only think of one answer - underground hot springs!

This water vapor condenses due to huge changes in temperature.

Above the waterfall, there is the natural hot spring that Chen Jing has been looking for. And it is definitely a huge natural hot spring water system!

Sure enough, that feeling is right!

Chen Jing was extremely excited.

This is the most critical part of the entire plan!

It has been more than a month since we set out from Daolan City to plan the biological structure of the steam engine.

Even in this more than a month, he knocked stones for half a month!

Even in this underground space, he had been wandering around for almost a long time.

I finally found it!

Now, Chen Jing is only one step away from obtaining the evolution equation of heat-resistant cells.

As long as he can find living creatures in this underground hot spring.

As long as the existence of living things can be found, even if they do not have the evolutionary equation of heat-resistant cells, Chen Jing will drag down a saber-toothed wolf and feed it until it grows on them!

Looking at the underground waterfall, Chen Jing grinned.

The height of the underground waterfall is not big, only eight or nine meters. In the past, Chen Jing would jump directly from this height.

As long as he follows the cracks in the rock wall, he can climb up.

Even with the cooling of the water, Chen Jing seemed to be able to feel the warmth of the rock wall.

The rich geothermal resources of Gaoqi Volcano began to unfold in front of him at this moment.

The power of nature is still a force that Chen Jing needs to fear.
Chapter completed!