Xu Anqing listened more seriously.

After walking a little further, he rushed to Professor Xie Gaoyi and asked softly: "What do you need to do if you want to discover new species?"

It is obviously not the first time Xie Gaoyi met such a student, so he was willing to explain it to him. When he saw that the students around him were listening with their ears pricked up, he simply raised his voice and smiled: "Discovering new species is not a simple matter. As we all know, in the 18th and 19th centuries, it was a century for naturalists, and it was the golden age. There were too many newly discovered species. "Origin of Species" was also written at that time. At that time, there were even small islands that were untouched. As long as you walk up, you can do the naming work for several years."

Speaking of this, Xie Gaoyi was at first leisurely for a few seconds before continuing: "It's not possible now. Now, like the Badaling Forest Area where we are currently in, they are scratched like a comb, and it's not impossible for new species to appear, and the probability is very low."

Xie Gaoyi really didn't dare to say anything. Badaling Forest District is indeed the main education area of ​​the Botany Department of several universities in Beijing. Countless experts and professors passed by and inspected, but so what? Historically, stories of new species were discovered in the school teaching area, but there were endless stories of some universities that had even experienced this situation two or three times. The complexity of plants determines their characteristics.

Compared to plant majors, Xie Gaoyi, who grew up listening to natural science stories, felt less empathy, and just quietly surrounded Xie Gaoyi and waited for him to talk about the part of the play meat.

Xie Gaoyi immersed himself in a while, and then said: "If students are interested in plant taxonomy, study plant classification, discover new plant species, and understand the knowledge of new plant species, it is called plant taxonomy. If students have a stop here, the first thing they have to do is to observe plants, analyze plants, and it is best to find the direction of a taxonomy. Do you know what natural groups are?"

The students shook their heads one after another, and some people silently recited the species of the Syllabus of the World, but they did not find out the concept of group.

Xie Gaoyi smiled and said: "Taxes are taxa. Now we are talking about natural groups. To see which group a species is, to see if it has the same evolutionary source as the species of the same group."

The students nodded in a vague way.

Xie Gaoyi came to class today, so he said again: "Let me give an example. Ferns are a group of groups, and they have the same commonalities, such as sporophytes, spore leaves, mature sporophytes, and short-lived gametophytes. By determining these, one can basically determine whether a new plant is from a group of ferns or a group of non-ferns. However, it is not easy to do these."

Xie Gaoyi took a deep breath and said, "I have been doing research for more than 20 years. Now I dare to say that there are probably only a few categories that I know. Let me put it this way, if you start today, know a few categories every day, and in a few years, you will be familiar with one or two categories, and then do field surveys based on different categories, you will be targeted."

Xu Anqing and the classmates around him nodded slightly.

"This is a difficult process." Xie Gaoyi sighed and said, "Standing here today, I have to pour some cold water on my classmates. Now, after identification, 99% of the species you have found are... Oh, it turns out that this is what is written in the book."

The students couldn't help but laugh.

Xie Gaoyi also smiled and said, "You can still laugh now. When you encounter such a thing, you won't be able to laugh. Think about it, if you finally find a new species and you are sure that you have never seen it before, you must make good records and search. You may also borrow specimens from our school to compare plants of the same group or adjacent group. In the end, you find that it is all in vain. Are you angry or not?"

The students simulated the route Xie Gaoyi said in their hearts, and they all felt sorry for each one.

Xu Anqing's heart trembled even more and said, "In this way, you have to remember the shape of the plant?"

"That's right. Why do you think it's difficult?"

Xu Anqing nodded obediently and said, "I always feel it's not easy to remember."

"It's not harder to learn than English." Xie Gaoyi laughed and said, "The technology is better now, just talk about which group of identification is. We used to do classification, so we had to work too much work. Now, we have to thank our Yang Rui and Yang."

The whole class was stunned for two seconds for no reason, and suddenly turned around and looked at Yang Rui.

Although Yang Rui was not sure, he still stood firm with a smile and kept smiling.

Xu Anqing couldn't laugh anymore. Can Shen*** tell me what happened?

Xie Gaoyi did not let everyone wait too long, and quickly revealed the mystery, saying: "We can identify groups now, and we can use the PCR method invented by Yang Rui. Simply put, aren't we going to test whether the species is homologous? You can know how to measure the specific test. You can ask Yang Rui for advice after class. It should be said that this is the direction and trend of our future development of biology. Accurate quantification depends on Yang Rui's pioneering invention in this area, which is very meaningful."

Xie Gaoyi pulled Yang Rui very high, and the students were stunned.

In school, Yang Rui's news and news have never stopped. Everyone knows that Yang Rui is extremely powerful, but Professor Xie's comments are still shocking.

Today's students are not as good as those of the future, and they are familiar with various politicized test languages. They are shocked to hear Professor Xie say in person that the trend of biology depends on Yang Rui's pioneering inventions.

This is mainly because Xie Gaoyi is not a teacher in biology. Yang Rui's major will not give Yang Rui too high for various reasons. Xie Gaoyi doesn't care. In fact, he has lowered some evaluations, or he has not yet realized the greater value of PCR. Otherwise, the technology at the Nobel Prize level would only have a pioneering evaluation.

Yang Rui also accepted Xie Gaoyi's evaluation without shame. PCR deserves this evaluation. As for personal contributions to the world, making the first PCR device in advance may have accelerated modern science.

This is the generalized item alone, and there may not be much difference within three or five years. Ten years later, patients who can get better treatment are not described by thousands. Millions are considered humble.

Yang Rui's high spirits and smile made Xu Anqing's face red, but his body was cold, as if the military coat had no effect at all.

Xu Anqing thought of his father.

He was thinking that even his father could not get a better evaluation from a person like Professor Xie.

Compared with this, Xu Anqing felt even more powerless and depressed.

"The main forest area is ahead." Professor Xie led the team and continued to move forward. The road under his feet was a little slippery and rugged, which made people have to restrain their minds.

Professor Xie did not lead the team into the main forest area. Although it is the teaching forest area where the capital is located, the forest area is a forest area after all, and there are countless dangers. If it is a plant major who has conducted field surveys many times, or a researcher at the institute who has been doing plant research for many years, he may lead the team to go deeper. For the first time, or the only biology student who conducted field surveys, there is no need to go deeper into the dense forest.

It is already very difficult to walk around the forest area.

The dirt roads in the forest area are crisscrossed and seem even more interrupted from afar. They are either destroyed by the creeping weeds or covered by white snow. The uneven road surfaces consume even physical strength. Even students who often do physical work are out of breath.

The inevitable uphill and downhill are even more dangerous. Even if the stones in the forest are not moss, they are extremely slippery by dew and thin snow. On some sections of the road, students fall down one by one, and look at the clumsy movements in front of them, but when it is their turn, they still have to lie down clumsyly.

When Professor Xie talked about the name of the plant, the students could only look up weakly, and there was no one who took notes. Just taking notes and putting notes can make people scream tiredly.

Yang Rui also began to feel overdrawn, and only felt that his bag was getting heavier and heavier. However, he was very energetic because he began to slowly match the path he had walked with the map in his mind.

"Professor Xie, let's go south. There is less snow in the south." Yang Rui began to give suggestions at the fork in the road.

Professor Xie had no objection, so he adjusted his direction according to Yang Rui's opinion.

After walking for a while, Yang Rui said again: "Professor Xie, let's climb the hill over there? Be warmer."

"You lead the way." Professor Xie didn't know what Yang Rui meant, but he had to give face.

After doing this for many years, Xu Anqing felt uncomfortable.

"I'm just pretending to be a big-tailed wolf after being praised for a few words." Zuo Liyan, a classmate, pondered Xu Anqing's mood and commented on him.

College classmates have various relationships. Zuo Liyan lives in Xu Anqing's upper bed and always likes to follow him, which also forms a wonderful dog-legged symbiosis relationship.

After two years of getting along, Xu Anqing was like the empress dowager who could not live without Li Zi, and Zuo Liyan.

Zuo Liyan's words were exactly what Xu Anqing thought. He laughed twice, took a breath of the cold forest air, smiled, and said, "Let him have the ability to discover a new species."

"He couldn't recognize the new species even after discovering it. I was so angry that I was so angry that I could not follow the teacher's instructions." Zuo Liyan himself was also very dissatisfied.

"He wants to command, so let him command. Maybe he wants to put a big satellite in Beijing Badaling, and found a new species that no one has seen before." Xu Anqing said as he laughed.

Zuo Liyan also coughed with a giggle.

Some classmates around the two heard it. Although they didn't agree, they also found it a little funny.

Indeed, there are green and white forests on both sides, and it is even more exhausting to go anywhere.

Just as laughter broke out at the end of the team, he walked slowly in front of the team, and Professor Xie's shout came from the front: "Yang Rui, don't go far."

"I think this plant is a bit strange. I'll pick a specimen. Professor Xie, can you please help me?" Yang Rui's voice came from the empty forest, arousing the curiosity of the students.
Chapter completed!