No one knew when the volcano around the library would erupt, and Ron wasn't interested in waiting up there all the time.

The new city is around the aura, in fact, the fish don't need a fixed building to live in, they are not Cthulhu, and it is better to maintain mobility.

There are too many dangers on this planet, and Ron is not on land, so he Shugues has built a lot of cities on land, and at the break between the land bridge between Africa and Europe, cities inhabited by animals are connected, the ocean behind the African plate has its own town, and Africa is blocked by a wall above it, and a huge circular building rises from the ground.

Although it can't deal with Naia, it can guard against the invasion of other dangerous animals.

Pangu covered thousands of kilometers of city walls with ice water, which was spectacular.

Shogues was responsible for handing over the animals to make bows, rolling logs, and fireballs with crude oil, and the Slender Tooth was responsible for the defense of the city, they were fierce and ruthless, and their speed was comparable to that of the aliens, not to mention the ancient wolves with a little spiritual power, even Cthulhu had to dodge for three points.

A highly mobile animal is not enough, and Pangu recommends the ancient saber-toothed tiger, hyenadon, and flying pseudo-toothed bird.

Hyenas, or hyenas, are highly specialized predators with long, narrow jaws that are powerful and good for crushing and crushing things. Their skulls are huge, but their brains are small. It has a narrow snout on its long skull, which is larger than that of the canine family. It has a shorter neck than a skull, a long and stout body, and a long tail. Both the front and back feet have five toes, with the first toe being shorter than the others.

For a more powerful killer, the pseudo-saber-toothed tiger also has more developed saber teeth, which are long and flattened in the shape of a saber, and the elongated leaf guard of the lower jaw is not very prominent. Ron was happy with both animals.

The pseudo-tooth bird, a giant prehistoric bird with a wingspan of 6.1 to 7.3 meters, may be the largest bird ever to fly for reconnaissance purposes.

Let them hover over the continent to raise the warning a lot, Pangu said, "I can give their leaders a name, they would love to have the Nightmare of the Sea give them a name himself." ”

Ron pondered for a moment and shook his head, "Wait until they have merit, let them cultivate their spiritual power first." ”

"As for the leader of the Finetooth Beast, he has done a good job during this time, and he has given him the name 'Di Ting'.

Pangu was overjoyed, "Then he will work harder." ”

After greeting Pangu for a while, Ron looked at the candlelight on both sides and the glowworm who were working hard to cultivate, and he was even more pleased.

"Huh! Ron! ”

"What's wrong?"

"You seem to have bones growing out of your back."

Ron was overjoyed, was this going to evolve into a low-level chordate?

He asked Pangu to take a closer look, he was so busy during this time that he forgot that he still needed to evolve.

The cord is a rod-like structure that supports the back of the body, located on the dorsal surface of the digestive tract and the ventral surface of the dorsal neural tube. It occurs from the dorsal wall of the gastrula of the embryo and is later separated from the gastrulation.

Ron himself also released his mental energy, feeling that the notochord on his back was made up of vacuole-rich notochord cells, and the notochord sheath often consisted of two layers, the inner and outer layers, the fibrous tissue sheath and the elastic tissue sheath, respectively. The vacuole-filled notochord cells are both elastic and stiff due to the turgorical pressure.

There is really a thin rod-like structure, located between the digestive tract and the neural tube, the notochord originates from the dorsal wall of the gastrula in the embryonic stage, and is thickened, differentiated, protruding, and finally separated from the gastrula and formed, the notochord is composed of notochord cells rich in vacuoles, and the notochord is surrounded by the connective tissue nature secreted by the notochord cells.

Ron was overjoyed, "I'm going to evolve again, haha!" ”

Pangu also echoed, "Really fast, you're starting to be vertebrates, will you be able to go to land soon?" ”

Ron smiled, "The notochord is not the spine, the spine is slowly produced after the notochord appears, the spine is bony, the notochord is not bone, my body has not completely changed into the form of a fish, and when it evolves into a fish, it is a real chordate, but this is already a good start." ”

It's a place where you can have a lot of aura, and it's really a great place to accelerate your evolution.

Thinking of this, Ron hurriedly reminded Pangu, "You also look for places in Africa where there is abundant spiritual energy for animals to cultivate." ”

"I'm going to let the pseudotooth spy investigate."

"Go!"

"Luo... Ron, now the animals are all a family, there are more and more of them, they eat fish every day, they are tired, can they eat meat, but everyone is friends, who to eat! ”

Ron also thought about this question, and since Pangu raised it, he also remembered his answer, "Then eat the Titan Giant Serpent, I heard that they have been reluctant to come to our city, anyway, it has reached their end times, and there are some wild ones, you can also eat them!" ”

Pangu rejoiced, "This city needs a name." ”

Ron pondered for a moment, "Let's call it Winterfell, and the team of listeners will call the Night's Watch!" ”

"Winterfell, Night's Watchman, good name!"

Winter is coming...

After Pangu left, Ron was still immersed in the joy of evolution, and when his notochord was fully grown, I would be a fish, and then leave the sea, try to learn to walk with fins, and strive to become a vertebrate as soon as possible.

The continent of the future awaits me.

Look at the candlelight and glow that are quietly cultivating next to you, let's still cultivate.

Yihai has also expanded several times in the process of its own evolution, and it needs to give birth to more spiritual power, and Yuhotaru and Candlelight are originally larger, and their Yihai is also larger than Ron's, but their spiritual power is not as much as Ron's.

Ingesting thousands of years of spiritual power from the crystal, the vastness is filled with Ron's sea of mind, not to mention, he can also produce it from the jade dream realm when he sleeps, so that he can continuously generate spiritual power 24 hours a day.

The three of them cultivated here, and after a long time, Ron felt that he had a dorsal nerve cord, and the gill cleft was slowly growing, and a small lung in his body was also forming.

This allowed him to breathe both at sea and on land, and Ron's skull, jaw, and spinal canal were quietly forming.

Ron enjoys the changes brought about by evolution, the spines on his body have degenerated, and now he resembles neither a sea urchin nor a fish.

Faster, faster!

Ron wandered through the bubbles, bobbing his body in the pose of a fish.

"Ron!"

"Ron!"

"Huh?"

Immersed in fantasy, Ron is broken by the voice of Hotaru.

"Library City has erupted."

"What a good thing!"

"But the creatures that stayed there were killed!"

Ron's face was solemn, "What do you mean?" ”

"In the eruption, the air currents broke through the stones, and some aliens escaped."

"Not all dead?"

"No, the spared lungfish told me that the Leviathan still has nearly a hundred or so aliens that escaped, and the rest should all be dead!"

"Leviathan, your life is really big, it's been hundreds of years, and you haven't starved to death, it's not scientific!"