Evolution from the crocodile

There are also many fish and wild animal remains and furs around, which should be food residues left by the anaconda group.

Lu Chen had noticed before that there were many large fish living in the crisscrossing underground rivers. It seems that those mutated anacondas should not lack food even if they live in the cave for a long time.

The other party is lying in a deep pool outside the cave and will not return to the nest for a while. So after a brief inspection, Lu Chen didn't take it to heart and continued to explore deeper underground along an underground river.

Soon, they walked more than ten miles in a twist and turn.

At this moment, I don’t know how many meters deep into the ground the surrounding temperature has dropped by at least ten degrees. Especially the water in the underground river exudes a biting chill.

Fortunately, Lu Chen's current temperature adaptation range is 0-50 degrees Celsius, which is within the tolerance range.

I go……

Some kind of dead dinosaur, or an unknown creature? !

When Lu Chen saw a huge animal skeleton appearing next to the underground river, an incredible color appeared in the animal's eyes.

My guess was correct, this cave was far more mysterious than imagined.

The largest terrestrial vertebrate animal in the past life was undoubtedly the elephant. An adult African male elephant was about 7 meters long, with a maximum height of more than 4 meters. The general weight was about 4 to 5 tons, and the heaviest record even reached 10 tons.

It is precisely because of this huge size that they are invincible on the prairie, with almost no natural enemies. Lions, cheetahs, hyenas and other ferocious beasts are also intimidated by them.

But the giant skeleton in front of me is several times larger than an elephant. A rough estimate is that it is at least twenty meters long from beginning to end.

The skull alone was the size of an entire bed, with sharp and thick teeth exposed in its mouth.

There are also four thick leg bones, each like a pillar.

The entire skeleton was scattered in pieces on the shore. There were no signs of struggle around it. It should have died of natural causes. Even, I could vaguely sense a bit of wildness.

More importantly, it does not exist in the form of a prehistoric fossil, but a gray-white skeleton.

The formation of fossils takes at least tens of thousands of years, and the death time of this mysterious creature is within ten thousand years.

Lu Chen stretched out his toes and touched it carefully a few times. The texture was hard and the sound was dull. It wasn't like he guessed that it would be destroyed by a light touch.

How many years can biological skeletons remain intact in the natural environment? Lu Chen didn't know the answer to this.

Perhaps under dry and sealed conditions, it can be stored for hundreds or even thousands of years. Those mummies from previous lives are the most obvious example.

However, there is air circulation in the underground cave in front of you, which will naturally breed putrefactive bacteria... Therefore, this mysterious giant creature will most likely not die for a long time.

Maybe only a few decades, or even less.

An idea suddenly popped into Lu Chen's mind.

This thing...should not be a native creature of Blue Star!

For living things to thrive, they cannot exist in the form of a single individual. If there had been such a huge creature on the Blue Star land before, it would have been at least a group, and there would be a high probability that humans would find the remains of their skeletons.

After all, even the mermaids hidden deep in the seabed are usually never seen, leaving many specious legends in the human world.

And I had checked the information before and found no records of similar mysterious giant creatures.

So, how did it appear on Blue Star?

With deep doubts, Lu Chen was about to investigate more carefully when he suddenly heard slight abnormal fluctuations coming from the dark river not far away.

He immediately turned around and saw huge waves rising from the water several feet wide.

Crash...a ferocious head appeared.

With the faint fluorescence emitted from the stone wall, Lu Chen could clearly see the other party's appearance.

It has a dark, ferocious head with two pairs of dark red, coral-like fleshy tentacles on the side of its head. The surface of the thick body is covered with three flame cloud patterns, extending to the end of the tail.

If you ignore the razor-sharp teeth in its mouth, it suddenly looks like a giant salamander that has been enlarged several times.

So... some kind of mutated giant salamander?

First, we discovered the anaconda's molting nest, then encountered a mysterious skeleton of unknown origin, and then the giant salamander appeared... and the strange blood snake orchid from the outside world.

Lu Chen became more curious about the nearby mountain forest environment, and had some vague speculations in his heart.

However, for now, we still need to kill this extra-large giant salamander first.

The largest giant salamander in the previous life had survived for more than a hundred years, with a body length of two meters and a weight of almost 70 kilograms. However, this guy has four short legs and is extremely clumsy when crawling, making it impossible to pursue its prey.

They mainly rely on passive hunting, waiting for prey to come to them.

The body in front of me is almost 6 meters long, with thick and powerful limbs, and a mouth full of sharp teeth, which makes it look very difficult to mess with.

In all likelihood, after this guy's mutation, his hunting ability has been greatly enhanced.

Lu Chen guessed in his mind and slowly retreated further into the cave. He did not intend to turn around and escape, but to choose a battlefield that was beneficial to him.

This guy is obviously an amphibian. It should live in the water most of the time, and it will definitely not run too fast on land.

However... Lu Chen guessed wrong!

The mutated giant salamander suddenly exploded on the water's surface, and its body ejected like a cannonball.

Tap tap tap!

In the blink of an eye, he rushed seven or eight meters away.

Although the speed is not comparable to Lu Chen, it is not too slow.

If it were an ordinary crocodile, it probably wouldn't be able to react at all.

In the flash of electric light, Lu Chen moved his limbs and landed four or five meters away in a flash.

Chirp, chirp!! This guy opened his mouth wide and let out a loud and sharp roar.

At the same time, his stomach bulged and contracted, and he seemed to be panting constantly.

Pfft... The guy opened his mouth, and a large ball of smelly water flew rapidly towards Lu Chen.

Damn...hidden weapon? !

Lu Chen instinctively felt that the smelly water was a bit strange and did not dare to resist with his body.

Jump again and dodge.

Hee hee hee... black water scattered on the rocks, and pungent smoke came out.

Lu Chen was startled and quickly looked around, finding holes in the stones stained with black water.

This thing is highly corrosive, should it be regarded as some kind of mutant ability? He finally understood why the other party dared to attack him.

After the test is over, it's time to get rid of this extra-large giant salamander.

After making up his mind, Lu Chen rushed over at full speed.

The large giant salamander opened its mouth again, trying to spit out black water to stop it.

It's just that Lu Chen's attack speed was too fast, and it had no chance at all. He heard a thud, and then his body plummeted and flew more than three meters away. He smashed two stalactites one after another and rolled several times before stopping.

After the attack was successful, Lu Chen didn't stop at all. He ducked forward again, opened his big mouth and bit the opponent's body directly, and the powerful and terrifying bite force exploded instantly.

Click... One of the thick legs of the extra-large giant salamander was easily bitten off.

Chirp, chirp this guy screamed one after another.

Crash... Another similar big head emerged from the depths of the underground river.

besides?

Lu Chen was startled, but the movement of his front paws did not slow down at all.

all!

With several consecutive blows, the prey's head was blown open.

Then, he turned to look at another giant salamander that surfaced.