The safe return of Zhu Yan and Chen Lan made everyone in the base breathe a sigh of relief, if it weren't for the fact that they couldn't get out of this valley, Mr. Chen and his wife and Zhang TCM would have been looking for people all over the mountains. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

The two of them had to be criticized by Teacher Chen and Mrs. Fang, in the eyes of their parents, no matter how high their cultivation was, they were always just children who didn't grow up.

However, when the two of them told everyone about their adventure, everyone was stunned. If it weren't for seeing the demonic beast materials and elixirs brought by Zhu Yan and Chen Lan, they really couldn't believe that they were all true.

More than 3,000 meters underground, there is actually a cave world full of spiritual energy? It's dark and hot, but it's full of plants and animals? But bizarrely, they also said that the underground cave was once inhabited by prehistoric humans?

It's a fantasy! It's not impossible to say that there is a big cave world underground, and it's normal to form a cave or something. However, with more than 3,000 meters underground, it is absolutely impossible to form a natural karst cave, because the sedimentary limestone can only be distributed in the ground of tens to hundreds of meters.

And to say that it was opened up by prehistoric humans, it is even more incredible, how can it be possible to survive in an underground environment of more than 3,000 meters? What's more, how much work is needed to excavate such a large cave?

As for the fact that there are still plants and animals growing in these underground caves of more than 3,000 meters, it is also impossible. According to reports, the world's deepest gold mine, the Mponig gold mine in South Africa, has been excavated to a depth of 4,000 meters, where the temperature of the rock is as high as 57 degrees Celsius. Now, even if the underground cave is only 3,000 meters deep, the temperature of the rock will not drop below 42 degrees Celsius, and there is no sunlight, how can plants and animals grow in such environmental conditions?

The others were a little better, but the dozen or so classmates standing next to Mrs. Fang were very puzzled, and they were already muttering quietly there.

"Science teachers have long said that light is the most basic condition for plants to survive, and it is impossible for plants to survive anywhere without sunlight! …… That's unreasonable! ”

"Yes, how can plants photosynthesize without sunlight?"

"Moreover, with a temperature of forty-five degrees, people can't live!"

……

Everyone, you and I are talking word by word, and I can't explain it with the knowledge learned in books. But the facts are here, Zhu Yan and Chen Lan brought out thousands of plants from the underground cave **** - they are all elixirs used in the recipe of the potion, and they can't help but believe it.

See, these plants are indeed very different from common surface plants. The leaves are not green, nor are they in normal condition, but are strangely twisted into purple twists. The stems do not grow upright or upward, but grow horizontally and radially, like a spread spider web.

"Perhaps...... Perhaps, they also absorb infrared rays for photosynthesis! ”

Zhou reporter said that she was very uncertain, she had seen similar reports a few years ago, saying that scientists in Dongwei and South Australia had discovered plants that used infrared for photosynthesis. However, those plants are low-level algae, and these plants in front of you, can they also use infrared light for photosynthesis?

"Photosynthesis with infrared? Well, it seems right to say that, the temperature in the underground caverns is high, and the vitality is abundant, and most of these vitality is in the form of infrared rays, and these plants are indeed likely to absorb infrared rays. ”

Chen Lan immediately thought of the situation she perceived at that time, and the more she thought about it, the more she felt that Reporter Zhou's guess was very reasonable.

Zhu Yan, who shares her heart, also supports this speculation, adding:

Judging from the morphology of these plants, it is also in line with the conjecture of the reporter Zhou. The science teacher said that the color of the leaves of a plant is just the opposite of the color and light it absorbs, and generally plants absorb red-orange light and blue-violet light, so they look green. A few plants absorb blue-violet light alone and appear red or yellow. Now that these plants are purple, it means that they are absorbing the deep red bands where the wavelength should be longer, and even the infrared band, which has a longer wavelength.

In addition, the ubiquitous infrared light in the cave means that the plant does not need to be phototropic, but only needs to spread the leaves as far as possible, and the spider web stems and twisted leaves should be adapted to this environment. ”

After his explanation, everyone thought that it made a lot of sense, so it was not surprising that plants and animals grew in the underground caves.

It's just that the animals in the underground cavern are really weird! This little beetle is a little better, since there are earthworms that feed on dirt, it is not surprising that there are beetles that eat ore now. But what kind of monster is that? ――Is it a snake? But how could a snake have a pair of wings and two pairs of claws? Fortunately, it is dead, otherwise most of the people here would have been frightened, is this the legendary snake demon?

……

Finally, everyone's eyes finally turned away from the strange plants and animals, and they noticed the bronze vessels, gold, silver, pearls, and clay tablets on the table.

"All of this was found in underground caverns? They're all relics! ”

Teacher Chen picked up a bronze container and carefully stared at the arrow-shaped inscriptions on the wall, his voice trembling a little.

As an intellectual, how can we not know that the state attaches great importance to cultural relics, especially those that hide historical information, each of which is priceless.

"Yes, they were all found in that abandoned village, and if they spread, they could cause a major earthquake in the archaeological world."

Zhu Yan's answer immediately aroused everyone's interest, especially those reporters, whose long-term interview work made them instinctively sensitive to news events, and everyone immediately gathered around.

"Huh...... What is this? Why does it look familiar? ”

It seems...... Well, that's right, it's Sumerian clay tablets and cuneiform! How did you get this thing? Aren't the Sumerians the Middle East? How did their relics end up here?

If the plants and animals in front can only arouse everyone's curiosity, then these metal utensils and clay tablets engraved with words have to cause people to think deeply. Because these things mean that there must have been humans living in the underground caverns, and it is very likely that these humans had a connection with the mysterious Sumerians.

"This thing, it seems to be a Sumerian clay tablet, and the inscription on that bronze vessel seems to be cuneiform. Hey...... It doesn't seem to be right, it doesn't seem to be cuneiform, but it's a bit similar to the early cuneiform, is it earlier than the Sumerians 7,000 years ago? …… How is this possible? ”

Reporter Liu, who came with Reporter Zhou, had done many interviews on archaeological discoveries before, and due to the needs of his work, he had studied cuneiform writing for a period of time, so he was the first to discover the problem. Since the last time they saw Zhu Yan's skills, Reporter Liu has long admired Zhu Yan so much that they have been on the ground, and regardless of his young age, they actually respect him as a master.

"We are not sure if they are Sumerian cuneiform, so we brought them out to ask the experts to confirm again, and if possible, we also want to translate all the words on the clay tablets. Reporter Liu, you know a lot of experts in this area, can you please help with this? ”

Zhu Yan explained slightly, and by the way, he also pulled Reporter Liu and them in, as members of the group, only by letting them all participate will they form a real cohesion.