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The place Fang Lao was referring to was actually a sinkhole, the sinkhole was huge, but it was not deep, and the sunlight could shine below. A sinkhole with an area of tens of thousands of square meters is very rare.

And below the sinkhole, a natural landscape has been formed, which is a small forest, and there are some unique creatures living there, and the most of them are poisons.

"I've seen it all around, if you want to go down, you need a rope to get there, there's no road. "Someone next to me reported.

Only those monkeys, birds and other animals can rely on their own skills to enter and exit freely.

Fang Lao frowned slightly: "Then wait a minute, we are fully equipped, and then we will go down." ”

Something like Xiao Wang happened, so that the whole team had to be cautious. The miasma below alone makes people have some scruples.

This kind of thing, in ancient times, was like a plague god. Miasma is an ancient legend, a poisonous gas in the jungles of the southern tropics, if inhaled, human beings can get sick at least and die at worst. The legend of the miasma has filled the people in the Central Plains with inexplicable fear of the south.

In fact, in the mountains and forests, both in the north and the south, there will be this so-called "miasma", and in the south, because of the weather, plus the primeval forest, the power is even greater.

To explain it with current science, the root cause of miasma is the composition of methane, carbon dioxide and other gases, and when their amounts reach a certain level, they will cause human poisoning.

Under the sinkhole, there is a miasma, which is the most normal. When the leaves and other materials decay, they will produce gases such as methane, and if the sinkhole is not ventilated, those gases will accumulate.

The animals that live below are not poisonous!

"There are no records of such a big sinkhole in China, right?" someone asked.

"That's not it, I've been to Hanzhong, there is a sinkhole there, known as the world's largest sinkhole, with a diameter of more than 520 meters. Another man spoke.

Those old-timers shook their heads: "It looks like this place has an area of more than 10,000 square meters and a diameter of more than 600 meters, right?"

The sinkhole is a mysterious natural landscape, and the reason for its formation, as everyone knows, is erosion in addition to collapse. There are a number of conditions, the first is that the limestone layer should be thick, the second is that the water table should be deep, the third is that the rainfall should be high, and the rock layers should be equal.

If you look at the cliffs around the sinkhole, you can see that the rock formations are parallel to the ground, like layers of stone slabs piled up around them, and only such rock formations can collapse.

A sinkhole with a diameter of more than 500 meters can be called a super sinkhole, and the sinkhole in front of it belongs to a super sinkhole, which can be directly filled in a big mountain.

"The depth is only 30 to 50 meters, and it is not very difficult for us to investigate. Someone said.

Previously, the most mysterious sinkhole in China belonged to the Lotte sinkhole.

The Leye sinkhole is surrounded by a knife-like cliff, forming a huge shaft. At the bottom of the sinkhole is an extremely rare primeval forest that humans have never set foot in, covering an area of dozens of square kilometers, and the forest is connected by karst caves and underground rivers, and experts believe that it is very likely that some animals that have been considered extinct will be found here, such as cave newts and blind fish. They are two ancient animals that lived in underground rivers and had degraded eyesight.

"Here, it's bigger than the Lotte sinkhole, but it's not that deep. An old-timer said.

He once went to the Lotian Sinkhole to investigate, and it was naturally clear.

Judging from the natural ecology of the sinkhole, the two are actually very similar. Because it is not so deep here, a forest below grows lush and green, reaching a height of thirty or forty meters, which is almost the same as the flat land by the sinkhole, which is the characteristic of this place.

It can also be seen that the species of this sinkhole will be relatively abundant. It is more valuable to research, after all, for them, the study of living things is their main task and purpose.

Some people describe Leye Tiankeng as a paradise for ancient plants and a kingdom for animals.

During an expedition organized in 1999, they had already photographed blue stones, square bamboos, and many plants that could not be named.

They believe that during that expedition, it was possible to discover plants from ancient times, such as alders. They even hope to discover some unknown species of flora and fauna. In addition, it is highly likely that aquatic invertebrates and rodents such as fish, insects and rodents such as rodents such as fish, insects and rodents are most likely to live in the Leye sinkhole.

It can be said that the harvest was quite large.

Therefore, for such a sinkhole, it is natural to have high hopes, hoping to find more unknown creatures and promote the development of human beings.

"Don't worry, let's use a drone to shoot first, and take a full picture of the sinkhole, which will help us study. Tonight, we will collect the data, etc., and we will have a meeting in the evening to discuss. Zheng Lao said.

In this team, he is the highest, and in the Academy of Sciences, Fang Lao is not as good as him! Of course, who is more powerful in each other's knowledge, it is a matter of opinion, after all, everyone is good at biological research is not the same, it is difficult to compare!

Nowadays, drone shooting is very popular, and for their team, it is natural that they cannot be left behind, and it does provide a lot of convenience to be able to observe the environment they need to investigate in advance.

So, among them, some people began to control the drone to fly into the sky and fly towards the sinkhole, preparing to take pictures of the surface of the sinkhole at 360 degrees without dead angles and collect data.

When doing research, data speaks, it's very important.

But at this time, an eagle flew out of the cliff of the sinkhole, chasing the drone and attacking fiercely. The guy who controlled the drone couldn't react and wanted to take the drone back, but it was too late.

The drone was attacked, and it quickly fell down and was scrapped, and a large group of people looked at each other!

"I was attacked as an intruder. Elder Fang smiled bitterly.

I still know the temper of these sky overlords very well, and once other "big birds" appear within their domain, they will attack immediately, and they can't let other birds become a threat to themselves!

In this situation, it is obvious that we want to dominate this sky and not allow other large birds to be presumptuous!

The loss of a drone is somewhat painful. But this was not the time for the flesh to hurt the hardware, and they found that the eagle was also injured.

"Go and see, it looks like a goshawk!" said to everyone.

Who would have thought that there would be such an accident? The drone was only sent in yesterday, and there were only two in total.

The goshawk is a little smaller than Ferrin's golden eagle and has always been loved by people due to its excellent survivability and fighting spirit. Nowadays, due to environmental pollution, ecological destruction and other reasons, the survival of goshawks is largely threatened. (To be continued.) Mobile phone users, please browse and read, a better reading experience.