The rocks knocked down by the * air wave formed a pile of rubble, we approached the rock wall with our hiking bag, stepped on the pile of chaos and climbed up, about five or six meters crawled, the top of our heads was bare again, this place was no longer suitable for filling*, so I took out the eight-claw hook, tied it to the launcher and shot towards the rock bank.

This eight-claw hook is specially used for climbing mountains, eight saw-shaped iron hooks are curved, able to grasp all objects that come close, should have hooked the stone, I stood at the bottom of the rock mouth, pulled into the rope head and tried a few times, I felt that the load should be fine, so I put the nylon rope around my waist, and climbed along the bare rock layer to the shore.

I finally reached the top, and the searchlight shone into the forest at the edge of the cliff crossing, and it was full of greenery, but there was no life at all, and the leaves of the tree were all weathered, and when I pinched them with my hands, they crumbled into powder, and the trunk of the tree was covered with a layer of rock ash, like volcanic stone, hard, and scraped on it with a knife, leaving not even a white mark.

My previous speculation should be correct, this forest has been petrified in ancient times, it is estimated that because of the volcanic eruption caused by crustal movement, a large amount of ash rock was melted by high temperature, with the heat wave drifting, layer by layer covered in the forest, after the high temperature cooled, a thick magma was formed, wrapping all the trees, in order to form such a magical petrified rainforest.

In this way, this should have been a canyon, not a crack in the ground, perhaps because of the change of rock structure, which led to the collapse of the terrain, coupled with the collapse of the rocks on the top of the mountain, completely covering the canyon, will form such a scale of strange landform, this landform can not be formed in one or two thousand years, according to my estimate, at least tens of thousands of years or even hundreds of thousands of years.

Then Chen Yun, who climbed up the rock, affirmed my judgment, she said that the planet we live in has been hundreds of millions of years, tens of millions of years of history, and it is out of reach for us, but for the earth, it is just a drop in the ocean, and the terrain and landforms on this planet are quietly changing every day, but this change is too subtle to notice at all, and if you want to change such a large spatial structure, a few will have to spend tens of thousands of years.

After a short rest, everyone climbed along the rope to the end of the petrified forest, presenting in front of them, it is a reckless primitive barren forest, tens of thousands of years of precipitation, the petrified rainforest still maintains the peculiar appearance of the ancient wetland, under the strong light of the searchlight, the entire dark jungle is presented in front of you without reservation, tearing off the ancient fig leaf, we found countless unprecedented petrified plants in this forest, Chen Yun even found a "seed fern".

As far as I know, this plant has long been extinct, widely lived in the Triassic and Jurassic periods, and became extinct in the Cretaceous period.

A natural plant belt is formed here, and the water seeping down the rock wall drips down the petrified plant rhizomes, forming a natural wetland climate, and the water droplets on the ground gather to form countless small winding ditches, which flow slowly along the rock valley and enter the underground river, and so on.

The top of the ground crack is an arc-shaped structure, although the distance is too far to see the actual situation of the cave roof, but according to our inference, this ground crack is not completely isolated from the world, there are still water droplets falling from the sky, proving that there must be a gap in the rock formation, which can realize the docking of water flow and air, otherwise the air in the ground crack cannot guarantee our normal breathing.

Chen Yun made a bold assumption, although the vegetation seen in the forest was petrified by the cover of lime, but if you go deeper, you will definitely be able to meet living vegetation.

There is no shortage of water and air, the soil is moist, and the temperature is always around 10-15 degrees, making it a suitable place for plants. Xiao Zhang objected, saying that although the moisture and temperature are suitable, but tens of thousands of years can not receive sunlight, plants cannot photosynthesize, how can they grow?

Chen Yun smiled and said that although I am not an expert in the study of animals and plants, I also know that plant photosynthesis does not necessarily need to be carried out in the sun, and that enough carbon dioxide can be produced in the main air to ensure the growth of plants.

Her words made my spirit nervous, to maintain the growth of a rainforest, you need to supply a small amount of carbon dioxide molecules, this kind of thing cannot be produced out of thin air, could it be that there are also wild animals in this underground world?

The climate in the rainforest is humid and the environment is much harsher than on the surface, and every breath of air you breathe in, you will take in excess water, and when this water is exhaled, it will turn into water vapor, making everyone look foggy and unreal.

Continue to walk a few hundred meters, the water stains on the top of the head become more dense, the water stains falling from the crack wall are divided by the huge fossil trees, becoming a block-like waterfall, the water on the ground has not passed the feet of everyone, the dark water flow washes on the rocks, and countless water mist vortices have been formed, and the light of the searchlight is refracted by the water vapor, showing a colorful shape, like a rainbow stretched straight up, which looks magical and full of psychedelic colors.

The extremely humid surface, after being washed by the rain, many rock formations have been destroyed, forming a shallow water, these waters are not deep, but the surface is turbid, so that people can not distinguish the depth, some can only not pass the instep, some can cover people's knees, sometimes a foot on it, it is inevitable to play a grin,.

Ge Zhuang walked all the way, scolded all the way, splashed mud all over his body, and his face was gloomy.

I don't know how long I walked, but this rainforest gave me a strange feeling, the silence all around, only the rain washed away, and the sound of our footsteps echoed, the further we went, the taller the vegetation in this rainforest became, and gradually took on a different scene.

It's as if we suddenly become smaller, and the vegetation in this rainforest becomes taller and taller, and with the vegetation as a reference, we have a sense of being smaller and smaller, as if we have been cursed by the mystery of the jungle, and we have all become dwarfs.

Everyone found out about this phenomenon, but they just thought it was weird, so they all held back and didn't say it to avoid causing panic among the crowd. However, there are people in the team who have good mental quality, and naturally there are also people who are not strong in mental quality, such as Xiao Zhang, as we go deeper in the rainforest, his face becomes more and more white, his teeth stumble, and finally the question in his heart is raised.

"Professor Chen, are we shrinking and shrinking, why do I feel that the leaves on the top of my head have become bigger than my head when I walk through this rainforest?"

Chen Yun stopped, glanced at him, and said lightly, "No, it should be the unique environment here, which causes the vegetation in the rainforest to become higher and higher, don't scare yourself." ”