The lava flows like a volcano in Hawaii, with a radius of thousands of miles, and there is basically no vegetation. The lava that is hot and has not yet cooled and hardened, although it seems to be solidified, once you step on the air and fall into it, you will only be wiped out, whether it is a terrorist person or other island creatures.

And thousands of miles away from the magma, there is a large area, although there is no magma eruption, but there are continuous hot springs that gather into lakes and streams.

These hot springs, which seem to be steaming, seem to be extremely mild. But in fact, it is rich in some things that are not suitable for life. The volcanic ash that had not erupted strongly, as well as the material in the earth's fire magma, were spewed out in another way.

Generally speaking, volcanoes and magma spew out of the surface with large amounts of sulfur and chlorine. If these gases are dispersed in the air, they will naturally cause acid rain to continue within a certain range, and no grass will grow.

However, if the temperature is sufficient, it should be dissolved in water. Some natural sulfuric acid and hydrochloric acid will be formed. And these natural sulfuric acid and hydrochloric acid, after chemical reaction with various metal substances erupted by volcanoes. In the hot springs formed by volcanic eruptions, there are large quantities of copper sulfate, iron chloride, and other colors that are very beautiful.

Extremely deadly chemicals for living beings.

A few days ago, when Yun Lei took Rao Ya to survey the terrain, he couldn't help but be surprised when he saw that thousands of square kilometers of land spread out with magma, thousands of square kilometers of land, large and small, condensed with various chemical agents, just like a chemical laboratory, after the continuous hot springs, he couldn't help but be surprised.

Such a wonder of heaven and earth is difficult to see in the outside world.

Those who live here are also very blessed. Later, these terrifying civilizations developed.

In the early days of industrialization, these fears did not need to worry about raw materials at all. These hundreds of hot springs and lakes of all sizes are full of the basic raw materials of the modern chemical industry - three acids and two alkalis, as well as various chemical products formed on the basis of three acids and two alkalis.

Even, Yunlei and Rao Ya also discovered a hot spring that specializes in gushing sulfuric acid...... I don't know how this came to be. It's even more powerful than the hot springs in Yellowstone National Park in the Mayflower Federation. If any creature falls into it, I am afraid that after more than ten hours, it will be turned into these strong acids and alkalis, and even the bones will be gone.

After Yun Lei and Rao Ya explored this world, they only found a lake with a pH balance and a suitable water temperature. This lake is also the largest of the thousands of hot spring lakes! It is estimated that because of its large area, there are several hot spring mouths that spew out various acid and alkali substances at the same time, which can skillfully achieve a certain acid-base balance. That's what makes this place.

And the area of this lake is estimated to be around several hundred square kilometers. Even on the surface, it is considered a large lake. It is in this lake, as well as on the shore, that there are some living beings.

Yun Lei wanted to capture the spiritual fire of heaven and earth, in addition to laying out some formations in the area where the magma flowed and spread in advance, and made some corresponding arrangements and reconnaissance. The most important thing is to hide your own existence. As well as keeping yourself in the best shape all the time.

In this way, it is possible to capture the Heaven and Earth Spiritual Fire that does not know whether it has reached the level of the Dan Stage or the Yuan Infant Stage level by surprise.

Otherwise, the Heavenly Earth Spirit Fire realized that something was wrong and hid in the magma. has been hiding for a hundred years, and Yun Lei can only stare outside. Unless it is a cultivator who cultivates the fire attribute aura in the god transformation stage, it is impossible for anyone to enter the magma like taking a bath to catch the spiritual fire of heaven and earth.

And this huge lake, and the sparse fern forest next to the lake, is the best hiding place for Yunlei and Raoya. Yun Lei took Rao Ya, and after leaving the terrifying tribe, he used the power of space to teleport here. Then, Yun Lei and Rao Ya sat side by side, hiding in the fern forest, watching the magnificent scenery of the magma flowing into the sea, water and fire.

And in this lake, swimming ups and downs, strange creatures from antiquity, quietly waiting for the appearance of the spiritual fire of heaven and earth.

Strictly speaking, this huge lake should be the oldest and most primitive place in this world, and even on the whole earth. This huge volcano, when it was slowly raised, did not completely destroy this lake and the ancient biota in the lake, which is simply a miracle in the history of geology and paleontology!

According to the emergence of life and the changes in the earth's environment, the geological age is divided, and the earth has experienced the Plutozoic, Archean, Proterozoic, and Phanerozoic from the beginning of its formation to the present.

In the Phanerozoic, it is divided into three generations: the Paleozoic, Mesozoic, and Cenozoic.

Dinosaurs dominated the Mesozoic Era. And before the Mesozoic, there was the Paleozoic era. In the Paleozoic Era, life successively went through the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian. The appearance of dinosaur ancestors was in the Carboniferous period, and gradually became diverse, in the Permian. Then we will rule the earth.

Before the dinosaurs appeared, there were many creatures that were far older than the dinosaurs and had long since become extinct.

The sudden appearance and prosperity of these ancient creatures made the earth flourish in the Cambrian period!

After the Cambrian explosion of life, the earth suddenly became lively. According to the fossils preserved in southern China from 570 million years ago, the members of the Cambrian explosion of life at that time included jellyfish-like creatures, trilobites, appendage-legged non-trilobal arthropods, golden gibbs, demodicas, sponges, endoanal animals, annelids, astratosaurs, soft-tongued snails, open bones, and algae, and even lower chordates or hemichordates!

The sudden appearance of these animals laid the foundation for the later prosperity of life on earth.

However, the Cambrian explosion of life has always been a mystery in the history of biology. No one knows why so many creatures suddenly appeared on the earth during the Cambrian period, and so many different kinds of creatures evolved!

This time life on earth flourished for no reason. In the history of paleontology, there seems to be no sign at all!