For example, Professor Dai Jixian, an academician of the Chinese Academy of Sciences, and Kavin Lee, an internationally renowned ornithologist. Wiesenke, an internationally renowned biologist, Chen Rui's best friend, Earl Hill, etc., because Chen Rui is often in . In order to get the latest first-hand information, there are many biologists from all over the world who have joined the Q/Q group.

As soon as the picture of the North American passenger pigeon came out, Shocked all the biologists in the Q.Q group, Professor Dai Jixian was so excited that he couldn't wait to fly from Yanjing to Daqingshan immediately, Kavin Wiesenke excitedly asked his assistant to book a plane ticket, he was going to rush to China immediately, Earl Hill wanted to contact Chen Rui for the first time, Li Jiayi's grandfather Li Haichuan's expedition team became larger, an expedition team from the American biological community boarded a plane to China, and biologists all over the world couldn't wait to see the North American passenger pigeon, a famous bird that has long been determined to be extinct.

Chen Rui and Li Jiayi spent the first night in Daqing Mountain.

The next day, the two of them got up early in the morning, the air in the forest was very fresh, the sun had not yet come out, the dew was heavy, the air was very humid, and the early birds were already chirping in the trees, playing a melodious jungle morning song.

After the two of them washed up in the creek a little, Li Jiayi received a call that the expedition team had entered the mountain and would arrive here at about half past nine in the morning, about two hours before now.

The two of them didn't go anywhere, so they waited here for the delegation.

I heard that the delegation was quite large, dozens of people, except for Chinese biologists. There was also an American expedition that arrived overnight. It is said that there is some official background in the United States. In addition to the expedition, more biologists from all over the world have entered Daqingshan one after another to look for North American passenger pigeons in Daqingshan.

At about 10 o'clock, Chen Rui and Li Jiayi waited for the delegation led by Li Haichuan, there were more than 40 people, including famous Chinese biology professors and foreign biologists who spoke English. There are also their assistants, carrying large backpacks, carrying camera equipment, panting and beard, their faces are already sweating, and they have entered the mountain at dawn in the morning, and now, it is quite hard to climb on the rugged Daqingshan mountain road.

"Hello, Ruichen. I'm Misleton from Harvard University. Denver."

"Hello, Professor Misleton."

"Hello. Professor Dai. ”

After everyone introduced each other.

"Rest for now, and I'll take you to find the giant salamander and the passenger pigeon."

"It is very rugged and steep, a mountain with deep and dense forests, it can be said that it is an old forest in the deep mountains, no wonder the subspecies of giant pandas, giant salamanders and passenger pigeons have been found in this mountain, if it is confirmed that the North American passenger pigeon has indeed found traces in Daqingshan, I will apply to the state for a nature reserve."

"An old friend of mine in the United States, when he heard that a passenger pigeon had been found in Daqingshan, had already called me 4 or 5 times to make sure that he had really found a passenger pigeon."

After resting, drinking some water, and eating something, everyone couldn't wait to start going.

Chen Rui led everyone to the cave upstream of the creek.

"Jiayi and I found the giant salamander here, and we also roughly counted the number, about 30,000 to 35,000."

Chinese scientists took out their cameras and began to take pictures of the giant salamanders in the stream, fished out a few and put them in a tank.

Under the guidance of Chen Rui, scientists found the largest giant salamander in a cave, and after measurement, it was learned that this giant salamander reached a body length of 2.14 meters, weighed 75 kilograms, and was already 150 years old, breaking the Guinness World Record for 'stupid'.

It seems that biologists from the United States are not very interested in giant salamanders, and constantly ask Chen Rui about the process of discovering the North American passenger pigeon, and show great interest in the North American passenger pigeon.

It was about noon that the study of giant salamanders came to an end.

In the afternoon, Chen Rui led everyone into the jungle.

About two hours later, arrive at the woods where the North American passenger pigeon was found yesterday.

"Yesterday, we found the trail of the passenger pigeon here." Chen Rui pointed to the dense woods in front of him, "The passenger pigeon probably stayed in this forest for about 4 or 5 minutes, and then flew away and flew in that direction.

"Thank you very much." Misleton. Denver said to Chen Rui, "We want to stay here for a while." ”

"Yes."

Everyone entered the forest, found some feathers and feces left by the passenger pigeon on the ground, put them in bags, and the discovery of the passenger pigeon feathers and feces made the expedition team more confident in finding the passenger pigeon.

Look in the direction where the passenger pigeon flew away yesterday.

As he walked, Chen Rui suddenly stopped, turned his head and said, "Everyone, stop and retreat, I found something." ”

"Jiayi, give me some trekking poles."

Li Jiayi handed the trekking pole in her hand to Chen Rui.

Chen Rui took the trekking pole, slowly moved the trekking pole into the grass, and suddenly, with a sharp press, he pressed down a triangular snake head.

It turned out that there was a poisonous snake hidden in the grass in front of it.

The head of the venomous snake is triangular, shaped like a soldering iron, the tail is white, the whole body is black-brown, mixed with very small yellow-green or rust-colored spots, forming a fine reticulated impression, part of the dorsal scales are yellow-green, clustered in clusters, forming lichen-like spots, equidistant from black-brown, longitudinal body tail,.

"This is the Mangshan soldering iron head." A Chinese biologist in the delegation said with some surprise.

Chen Rui knew that he was from Yanjing, named Li Qingming, a famous Chinese biologist, herpetiologist, ornithologist, who had a very deep study of snakes and birds.

Li Qingming continued, "This is the world's largest poisonous snake, and unlike other pythons, the Mangshan soldering iron head belongs to the giant poisonous snake, belongs to the viper family, the fierce giant viper, the weird rattlesnake, and the bewitching bamboo leaf green snake are its cousins.

Due to the large size of the Mangshan soldering iron head and the large amount of venom secretion, once bitten, its snake venom attacks rapidly with the blood in the human body, and in a very short period of time, it kills people.

Most of this snake is distributed in the south of the lake (Mangshan), in the local area of Mangshan, the Mangshan soldering iron head is considered to be the direct descendant of the legendary Fufu Xi Nuwa, 'Little Qinglong', Mangshan soldering iron head in addition to the distribution in the forest area of the south of the lake () Mangshan, there is also distribution in the north of the lake () and the east of Guangdong, the number is scarce, the wild one is only in China, the whole China is only about 300 to 500, less than the number of giant pandas, known as the "giant panda in the snake kingdom".

Due to its rarity and scientific research value, it was speculated to more than 1 million yuan on the black market. The discovery of Mangshan soldering iron tips here is a very unexpected surprise. ”

Everyone took out the camera and took a few sets of photos, and then let Chen Rui go.

After the discovery of the Mangshan soldering iron head, everyone's interest is obviously a lot higher, Daqingshan is really a treasure trove of biological species, the subspecies of giant panda, giant salamander, Mangshan soldering iron head, and the most cherished North American passenger pigeon, the deeper into Daqingshan, there are more bizarre biological species to discover, everyone is looking forward to it.

Although, Chen Rui found the North American passenger pigeon in the forest yesterday, however, a 'brigade' in the passenger pigeon shows that the habits of this bird are not like many land creatures, limited to a fixed life in a certain place, and the North American passenger pigeon has to fly everywhere, so it is very difficult to find the North American passenger pigeon in Daqingshan.

More than 40 people stayed in Daqingshan for 3 days, and they have gone very deep into Daqingshan, and still no trace of North American passenger pigeons has been found.

However, there were many rare species of rare creatures found, such as metasequoia, wild ginkgo trees, dove trees, clouded leopards, macaques, red pandas, etc., as well as a whole yew forest, which surprised everyone in the delegation.

You know, yew is very rare and valuable, yew is an ancient tree species left by the Quaternary glaciation, it has a history of 2.5 million years on the earth, due to the slow growth rate of yew, it takes 100 to 250 years from the seed to grow into a big tree, the number is very small, yew is called a 'national treasure' in 42 countries with yew in the world, the United Nations has banned logging, it is a veritable 'plant giant panda'.

In recent years, yew has also become a popular 'star' in the plant world, because it can refine paclitaxel.

Paclitaxel is recognized worldwide as an anti-cancer and anti-cancer agent.

In 1971, two chemists in the United States succeeded in isolating a substance from the trunk of a yew tree, named paclitaxel.

In 1992, paclitaxel was officially approved by the U.S. Food and Drug Administration (FDA) and was approved for marketing.

In China, in the summer of 1992, the first wave of yew bark wars began in the northwest of Yunnan Province, Yunnan Province, and a large number of businessmen flocked to the forest area to buy yew bark.

In the United States, since 1992, paclitaxel has been known as one of the three preferred anti-cancer drugs in clinical application, and its value has also increased year by year. The price of paclitaxel has been raised by the patented American manufacturer to three to four million dollars per kilogram, and paclitaxel has become the drug with the most investment potential, and the world has become a paclitaxel investment fever.

The content of paclitaxel produced in China is more than 98%, and the export price is generally 800 yuan/gram RMB, and each gram of paclitaxel is made into 33 grams of injection in foreign countries, each containing about 30 ml of paclitaxel, and about 2,500 yuan/branch per piece in China, and each gram of imported paclitaxel used is equivalent to 80,000 yuan, which is more than 600 times the price of gold. (To be continued.) )