Yun Lei and Rao Ya are completely unfamiliar with this underground ocean, and there is no such thing as a chart of this sea area at all, of course, this thing is absolutely impossible for outsiders to have. And Yun Lei didn't know how to find it, except that he knew that he was going to find the location of the underground magma.

Therefore, he could only summon the tens of thousands of Yin soldiers and ghost generals in the space gourd and scatter them to find the place where the underground magma may exist in this underground ocean.

After advancing like this for about a day or so, among the Yin soldiers and ghost generals under Yun Lei, there were several Yin soldiers who found an island in a certain direction in the sea. Although he didn't get closer, he just glanced at it from a distance, but he could see a faint red light surging in the sky, and from the top of the mountain, there was a red river flowing down, and it seemed that it should be an active volcano with magma flowing.

After Yun Lei heard the news, he no longer drove the boat, but with a movement in his mind, he teleported towards the island through space according to the spatial orientation coordinates of his ghosts and ghosts in his mental consciousness. Come to think of it, there should be traces of the spiritual fire of heaven and earth there.

And Yun Lei and Rao Ya searched all the way, and there was not much time left. At this time, it is a little bit to save a little time.

The next moment, Yun Lei appeared in the position of the Yin soldiers who sent back the news and coordinates.

As far as the eye can see, where the sea and the sky meet, there is a huge island. Looking at the shape of this island, it is clear that it is a volcanic island formed by a volcanic eruption. The top of the island has a slight gap, and on top of the mountain, there should be a volcanic crater.

However, there is no smoke and dust emitted from this crater. There is no volcanic ash billowing up. It's as quiet and calm as an ordinary mountain.

The only thing that makes this mountain completely different from other ordinary mountains is a river of magma that slowly leaves behind from the crater at the summit. The flow rate of this magma river is not very fast. Slow and quiet, not slow.

It doesn't seem to be much different from the streams that originate in the mountains.

It's just that one river is water, and the other is fire.

Moreover, from a distance, on the other side of this volcano, it seems that there is indeed such a river flowing with volcanic hot springs. It gushes out of the mountains, gurgles down and pours into the sea.

The river flowing with magma, only after the magma in the river slowly flowed into the sea, began to show its violent side, between the water and fire, the huge difference in temperature, so that the magma flowing into the sea, let out bursting sounds.

It is then gradually cooled in seawater. And the seawater, and the salts in it, and the hot and flowing magma that is sufficiently hot, have a strong physical and chemical reaction. While gradually cooling down and condensing, a large number of bubbles are also released, which gush out of the sea.

The local sea water boiled hot because of the temperature of the magma.

This vast island, the corner of the sea where the magma enters the sea, is all tumbling and boiling. The water vapor rises and rises to the sky.

As you can see, it is above this island, and it has condensed into patches of clouds.

And this magma, which has been flowing for an unknown number of years, reacts with the sea water after being injected into the sea, sinks and condenses, and remains at the bottom of the sea. And, from the bottom of the sea, it slowly accumulated, little by little, layer by layer, until it was piled up above the surface.

Yun Lei saw that in the sea where the magma entered the sea, there was a dark and blazing earth emerging from the sea area. In this dark and blazing land, wisps of crimson magma were revealed from time to time. Just like in the cloud and thunder space gourd back then, when the planet was at the beginning of condensation, it had not completely cooled and condensed.

Near the island, the new, cooled dark earth that had emerged from the sea was already bursting with greenery. Actually, it's also a fern.

Yun Lei took Rao Ya and landed here

On the beach of the island. It startled a group of creatures that were hunting on the beach. Fly with your wings. Wings large and small, spread across the sky. Some of them have a fierce temperament. Regardless of the three-seven-twenty-one, he actually screamed like that, rushing towards Rao Ya and Yunlei.

Yun Lei and Rao Ya felt that something was not right, birds were not such creatures in the Jurassic. Some only have a variety of large and small pterosaurs. Although, birds evolved from dinosaurs. But that was later.

When Yun Lei and Rao Ya looked closely, they found that these flying creatures that swooped towards them were indeed not birds from the outside world.

It's a whole different kind of being. It looks like a bird, but it is not a bird, and it is not as sharp as a bird when it flies. It seems that it is the distant ancestor of the birds of the outside world, which is not completely extinct here.

Yun Lei's heart moved, allowing a corner of this space to freeze, and carefully looking at these different types of flying creatures that were stagnant in mid-air in this solidified space. These flying creatures are somewhere between dinosaurs and birds.

It is a clear proof that birds diverged and went out from the dinosaurs, and finally, became a unique category.

When Yun Lei was a wealthy teenager, he was very interested in these creatures that had been extinct in ancient times. In addition, a large amount of information about dinosaurs and dinosaur fossils has been collected. At this time, I saw these living creatures.

In my memory, the skeletons that were originally buried and sealed by the dirt and sand and stones, and after a long time, they were preserved, but they were incomplete, but now, after seeing the real body, they became complete and clear.

Yun Lei's hand brushed over a wing, which was not well developed, and the tail was a little out of proportion, and it still retained a large number of dinosaur postures, and it was a strange creature that could only glide on the surface of the sea.

Said to Rao Ya: "This is the Wakiku Bird Dragon of the same era as the Archaeopteryx. Because its posture is so peculiar, until later generations, it is impossible to determine whether this creature belongs to the evolutionary branch of the bird class or the family of galloping dragons. ”

"Because of the plumage of its ulna and its pelvis that shows the evolution of a flying bird, it was originally classified as a bird. However, her evolution is not complete, so in terms of its body structure, the characteristics of the Chironidae are extremely obvious. ”

"Therefore, this kind of creature is not very capable of flying, and can only glide, or simply fly. ”

Rao Ya has always been a good student, although she has a high score in the exam, but she doesn't know much about these strange knowledge. However, women naturally have natural concerns.

Rao Ya's fingers slid over the back and body of the empty bird dragon, feeling the silky feathers, and said in surprise: "This bird's feathers are so soft! It's just that the color is a little monotonous, like a sparrow. ”