The scenery in New Bloss is getting wider and wider, the density of big trees is decreasing, and there are more and more low flowers and plants, and people's feelings are also from depression to openness of their mood.

Suddenly, Lima Oda shouted: "Teacher, come and see, hurry up!"

Totecchasky walked over quickly, and Lima Oda rarely made such a fuss, unless she made some major discoveries.

"Teacher, look," Lima Oda pointed to a cluster of bright flowers, "this trumpet blossomed on the crape myrtle tree."

"Are you sure it's blooming on the crape myrtle tree?" Totecchasky fell in shock, because generally speaking, the trumpet flowers are at most climbing on other trees, and it is impossible to bloom on other trees.

"Yes, it's the crape myrtle tree that bloomed with trumpet flowers." Oda Lima pointed to the root of the trumpet flowers and instructed Totek Chasky to see it, because the old man had poor eyesight and might not be able to see clearly.

Totekchaski finally saw clearly that it was indeed a trumpet blossom blooming on the crape myrtle tree. "What's so strange about the trumpet blossom blooming in the crape myrtle tree?" Pang Xiaonan came over and thought to himself, have you city people never seen the diversity of rural species?

Totekchaski turned to Pang Xiaonan and said, "Have you seen the croaker blossoms blooming in the crape myrtle tree?"

Pang Xiaonan shook his head and said, "No."

"It's not surprising that it's not true without you!" Lima Oda stared at Pang Xiaonan fiercely.

"Although I have never seen the crocus flowers blooming in the crocus trees, aren't all plants grafted?" Pang Xiaonan said disapprovingly, "Maybe the seeds of the crocus flowers fell on the crocus trees, and then they bloomed on the crocus trees."

Pang Xiaonan has a rich imagination, but it sounds like a little bit of a reason for the Black Mamba guards.

At this time, Booktonlin walked over because he found that the team had stopped and walked to the zimuth tree. He asked, "What's wrong, why don't you leave?"

Pang Xiaonan turned to Booktonlin and said, "Captain, they are studying the blooming of trumpet flowers on the crape myrtle tree."

Booktonlin looked at the cluster of colorful trumpet flowers curiously and asked, "It's really interesting to have trumpet flowers in the crape myrtle tree, but what's the point? I mean, is this very strange? Or is it impossible?"

Booktonlin looked up at Totekchasky, and then looked at Lima Oda, meaning that you stopped just to study the blooming of pimento flowers in the crape myrtle tree. Could there be any major discoveries here?

"Major Booktonlin," Totecchasky picked a trumpet flower, "You may not know that in the real environment, it is impossible for the crape myrtle tree to bloom."

"Old man, are you true?" Pang Xiaonan felt that Totekchasky was a little fussy. Grafting is a very common technique. "Don't fool us. At least we have eaten apple pears. Can't two different plant species be grafted together to produce new species?"

Totecchaski picked up the trumpet flower and sniffed it under his nose, and took a deep breath. The trumpet flower smelled faintly, unlike the light smell of ordinary trumpet flower.

He looked at Pang Xiaonan and said, "Strictly speaking, what you eat is called pear apple. Yes, that is the product of grafting apples and pears. There is also a famous story here."

Booktonlin looked around and looked at the watch again. The team had been here and had walked for an hour before they knew it. Everyone was a little tired, so he announced, "Everyone have a rest and listen to Professor Totecchasky tell the story."

So the scientific expedition team sat on the ground, and the Black Mamba guard surrounded the left and right, listening to Totekchasky telling the ancient story:

Mikhadov is an excellent primary school drawing teacher. He taught drawing classes year after year in this remote town. As always, he evaluated students' drawing homework according to his own standards, and never made any mistakes.

As before, Mikhadov walked up to the podium with a playful mustache and taught students to draw apples. He looked around the classroom, and his beard shook happily, and he was very satisfied. Suddenly, his eyes fell on the desk in the corner of the wall. Here was Eureka who had just turned to the class. His father was a forest ranger in the big forest. He was transferred to the small town for work due to illness. Eureka's apples were long and round, with sharp stalks, and painted with pear yellow. It can be said that what he drew was not an apple at all. "Did you draw an apple?" The child replied: "It's an apple." "I think it's a pear." "Yes, teacher, it's a pear apple." Mikhadov

He suppressed his anger and told the child that the apples were flat and should be light yellow, plus some bright red. His tone was very gentle. He hoped to use the teacher's usual reasoning and influence methods to make Eureka give up the pear-like apple. But the child didn't care about the teacher's gentleness at all. He said that in the big forest, an apple tree and a pear tree were struck half by lightning, and the two trees were close together and grew into a tree, and the pear-like apples were born on the one hand. He had eaten this kind of apple. He was the only person in the world who had eaten this kind of apple, because these two trees only had one apple, and later, the two trees slowly rotted and died.

Mikhadov, who was listening attentively, felt a mockery from the end of the story. He tore off the pear-like apple with a snap. "Either take out the apple you mentioned, or draw my apple obediently. Otherwise, don't come to class again!" The whole class burst into laughter. The rustic little boy from the forest shrank pitifully in the corner, but he still insisted stubbornly: "There is indeed such apple, and I have eaten this apple."

The next day, the child walked up to him with an homework book full of apples. What surprised Mikhadov was that these apples were better than other students' apples, but each round and bright apple was covered with spots of tears.

If Eureka was a lying child, things would have passed like that. But after Mikhadov's open and secret investigation, Eureka never lies. Although Mikhadov was in his picture class as usual, the two cute beards seemed to have caught a cold and would never shake happily again: the tears were deeply imprinted in his heart. Every class was a torture - he did not dare to look at Eureka who was huddled in the corner, and he was even more afraid of his classmates' ridicule of Eureka, and those sharp laughters were stuck in his heart like awls.

He knew that he had to find out if there were any apples like pears. He went to the ranger's house to inquire, and he went to the post office to send letters, and he asked everywhere, but there was no result. Finally one day, he jumped on a shabby car and rushed to the National Garden Research Institute a thousand kilometers away. After hearing his story, the horticulturist Michulin suddenly jumped up like crazy and took out vodka, toasted to his story, to the dust of a thousand kilometers of his body, and to his respectable pain again and again. Michulin said excitedly: "Dear Mihadov, I do not know if there are such apples in the world, but I must thank you. It will take at least three years to answer this question. Maybe, in the autumn three years later, I will give you a apple like pear."

Three years have passed. Suddenly one day, the door of the classroom was suddenly knocked open, and a man covered in thick dust walked in. This was the great Michulin, holding two magical golden apples in his hand. Michulin walked onto the podium and told the students about the inspiration he got from the story told by Mihadov, and the process of using grafting to obtain pear apples: "This is a real revolution in the plant world. With grafting, we have thousands of magical fruits that we have never seen and eaten. And the two people who started this great revolution were Mihadov's drawing teacher, and Eureka, a teenage student."

Like three years ago, Mikhadov stood on the podium proudly, and his beard shook happily again: "Students, let's draw an apple again. What I want to say is, please draw an apple that is different from me. Eureka, please make sure to draw another pear apple."

The apple Eureka drew was once again covered with tears, but it was accidentally made by Teacher Mikhadoff.

Totecchasky told the story, and everyone was listening quietly. Until he finished telling the story, the audience was still silent.

Finally, someone realized that the story was over and took the lead in applauding. Oda Lima also secretly wiped away the tears from the corners of her eyes. What a touching story.

Pang Xiaonan gave Totekchasky a thumbs up and said, "Old man, your story is well told, and your class must be very interesting. No wonder you can bring out an excellent student like Professor Lima Oda."

Pang Xiaonan made a pun, praising Totekchaski's class level and Oda Lima's excellence, which made people feel comfortable to listen to, but he immediately changed the subject, "According to your story, since you can have pear apples, why can't you have a zime horn?"

Totecchasky put the trumpet flower under his nose, took a deep breath, and said, "Es and plants with close kinship can combine, but the offspring has poor reproductive ability or has no reproductive ability. For example, this is the case with mules, lions, tigers, and pears. Tigers and lions, apples and pears have common genes. For animals with far-reaching kinship, sperm and eggs cannot recognize each other and cannot produce fertilized eggs. Even if the cells are forcibly fused, the genes of one species cannot be expressed normally in the cells of another species, so the embryo will not develop normally."

"This is reproductive isolation." Lima Oda added, "In a broad sense, understanding reproductive isolation means that no gene exchange occurs between two species, which is also a sign of the emergence of different species. There are 1.8 million species known on Earth, and scientists predict that more species have not been discovered at present. If these species trace back, they all have common ancestors, because they have embarked on different evolutionary paths, the difference has become larger and larger, and eventually become different species."

After listening to the story of Totec Chasky, many people started to do their own things, such as some people wanted to go for convenience, some people wanted to eat something, and some people wanted to drink some water. Everyone still lacked some interest in purely theoretical things, except for Pang Xiaonan listening to Oda Lima's explanation with relish.

"The biology classification of modern society: boundaries, phylums, phylums, orders, families, genus, species are mainly distinguished according to the distance between the kinship between each species, such as the concept of grandfather-son-grandson, etc. For example, the animal kingdom and the plant kingdom are very far apart, and if it is specific to different species under each genus, it means that the kinship is closer. For example, tigers and lions are both members of the feline-leopard genus, and only take different evolutionary paths under the genus Panther. In the higher classification kingdoms, phylums, phylums, etc.

They are all the same. If reproductive isolation occurs between an animal and a plant, it is easy to understand, for example, how can a tiger have genetic communication with a tree. But when the kinship is close, two species can also mate, and what is more magical is that offspring can be born. The most typical one is the lion and tiger beast or tiger lion beast that is mate with lions and tigers, and mules that are mate with horses and donkeys.” While observing the crape myrtle tree with trumpet flowers, Oda Lima came up with the basic theory of reproductive isolation.

"What you mean is that ziri and pissock flowers are completely different species and it is impossible to combine." Pang Xiaonan understood the meaning of reproductive isolation, and then understood why Lima Oda and Totecchaski made a fuss about pissock flowers blooming in pissock trees.

"That's the reason." Lima Oda looked up again at the flowers blooming by the Ziwei Tree. The tree bloomed two kinds of flowers, which was incredible, but it was also colorful and beautiful.

"Since there is reproductive isolation between different species, and lions, tigers, donkeys and horses are all different species, but they can mate and produce offspring. Isn't this just genetic exchange? There is no reproductive isolation?" Li Yis also came over. As a child of aristocratic families, sometimes having to marry cousins ​​is also a problem in the medical community, and genetic theory is also a problem that troubles Li Yis.

"In fact, reproductive isolation has a more rigorous definition. It can be divided into many situations. For different plants, reproductive isolation exists when the flowering period is different; for different animals, they may have different body shapes or reproductive habits and cannot mate. This is reproductive isolation; for the close relationship, they can be mated but the offspring is not fertile. This is also a kind of reproductive isolation." In addition to conducting research, Lima Oda is also a university professor. These problems are not unfamiliar to her, "that is, lions, tigers, whales, porpoises, mules, etc.

Because of their close kinship, they are members of the same dependent, and their reproductive habits are still matched, so they can mate and give birth to offspring. However, due to more essential reasons, such as chromosome differences and gene differences, the progeny cannot form normal gametes, so offspring are infertile. In this case, although the genes of lions and tigers are reflected in the next generation, the next generation will not continue to be inherited downward and end directly, so this does not belong to gene exchange."

"It's too complicated," Pang Xiaonan looked at Li Yis, "I think it's easier for us to practice good skills. Leave these academic matters to the professors."

Li Yis nodded and said, "We have specialties in arts. If the professor is a professor, we should do physical work."

Lima Oda looked at Li Yis and corrected: "You can't say that. I still want to learn kung fu from you. You also have to learn the necessary knowledge. Practicing qi not only requires physical strength, but also requires mind."

Pang Xiaonan winked at Li Yis, then raised his legs and walked to the side.

Li Yis followed and Pang Xiaonan said to him: "Don't discuss with a professor-level woman. You can't tell her that she will be hurt by her at that time." Pang Xiaonan is very experienced, and Lima Oda has no professorial style when she kills her.

Li Yis smiled, then frowned and said, "Hey, do you think the more we go inside, the danger seems to be getting smaller and smaller. I think it's a bit weird."

"Oh, you mean, we must encounter some danger, which is consistent with common sense." Pang Xiaonan leaned against a tree and looked at the quiet scenery. "Maybe we have passed the test of New Bloss and are now at a paradise."

"It may not be possible. The crocodile flowers blooming on the crape myrtle tree we just saw seemed to be in danger, but does this phenomenon also show that the environment here is a bit weird." Li Yis looked at the surrounding trees and flowers, and wanted to find another plant that violated the reproductive isolation.

"I'm very curious when you say this," Pang Xiaonan pointed to the forest in the distance. "If a creature that does not look like a tiger or a bear is found in the woods, it will really prove the strangeness here."

"Yes, since plants can cross so unscrupulously, there is no need to say about animals. Animals are more mobile and proactive than plants." Li Yis also looked at the woods in the distance, full of expectations.

"But we should not think so." Pang Xiaonan held a thick leaf vein in his mouth and swayed his hands casually.

"Why?" Li Yis licked his dry lips and walked over from the stream. He had not yet taken a sip of water.

"You think, it's very difficult for us to deal with a single species. If there are any hybrid monsters, we will have a chance to win." Pang Xiaonan raised a vivid example, "For example, having the speed of a leopard, the power of a bear, and the ferocity of a tiger at the same time...it's terrible to think about it."

"You are too hybrid, and you have so many abilities at the same time." Li Yis was also impressed by Pang Xiaonan's imagination, and shook his head with a wry smile, and took the kettle from his waist.

"How is it impossible? You don't know that there are many mixed-race children in China and have a lot of bloodlines." Pang Xiaonan's analysis is correct. China is an immigrant country. Many people have grandparents of different bloodlines. After mingling, no one knows which bloodline they are. The mixed genes of various types have also made the Chinese people rich and colorful.

As the two were talking, an animal suddenly ran out of the woods.

"Look, is that a rabbit?" Pang Xiaonan pointed to the animal and asked Li Yis.

Li Yis looked up and saw that the jumping animal did look like a rabbit, but it was much larger than an ordinary rabbit, and it was as big as an adult native dog.

"A rabbit of this big seems to be very nutritious." Li Yis is no longer surprised by the animal size of New Bloss. All the animals here are bigger than other places.

"Hey, how about we call that rabbit?" Pang Xiaonan winked at Li Yis, but his feet were already rushing out.

I haven't seen a living animal for a long time, and the food today has not yet been settled, so Pang Xiaonan remembered the roasted rabbit meat. Such a big rabbit can serve the meals of several people.

"Look, Pang Xiaonan is chasing rabbits." Several people from the scientific expedition team had already reacted and were amazed at Pang Xiaonan's agile steps.

The moment Pang Xiaonan rushed out, Li Yis also ran out. He came to the Black Mamba Guard without any performance. He thought that being able to fight a rabbit could be considered a contribution to the scientific expedition team.

The hare was extremely flexible, rushing left and right on the grass, sometimes jumping, sometimes running, and Pang Xiaonan had no choice but to use it.

"Damn, this rabbit is going to become a sperm." Pang Xiaonan looked at the rabbit who was teasing him, suddenly stopped, and put his waist on his back to think of a solution.

When Li Yisi saw Pang Xiaonan stopping, the hare was slowly paced on the grass, occasionally biting two bites of the grass, as if deliberately mocking the two people chasing it.

"Pang Xiaonan, we block it at the same time. You are chasing behind, and I am blocking in the front!" Li Yis shouted to Pang Xiaonan. When he was a child, he went hunting with his family and was well versed in hunting.

"Okay!" Pang Xiaonan was excited when he saw Li Yis joining the rabbit catching competition, and the wind blew towards the rabbit again.

The hare reacted quickly. When she saw Pang Xiaonan start, she immediately ran forward.

Suddenly, Li Yisi appeared in front of the hare. The hare was not panicked. She swept through Li Yisi's direction with just one turn.

"This is the first time I have seen a battle between humans and rabbits." Nandegrad leaned against a tree and watched Pang Xiaonan and Li Yis run around the rabbit with interest.

"Let's make a bet, I bet Pang Xiaonan and the others can't chase the rabbit." Bridge Morgan was intrigued and wanted to add some information to the rabbit battle.

"Okay, what are you gambling?" Wu Zhen immediately became interested when he heard that there was a bet.

"Betting 1 million." Bridge Morgan threw out the chips without blinking.

"Boss, you are so generous, I can't afford to bet." Wu Zhen was frightened by Bridge Morgan's bet. He couldn't make so much money even after working hard to do the mission, and he might even make his life.

Bridgemorgan frowned and said, "Then you won't be angry. Whoever loses will crawl through the other party's crotch."

Wu Zhen also frowned. This was a bet that would damage the dignity of a man.

"What, don't you dare to gamble?" Bridgemorgan urged while rubbing his gun.

"Go and bet, whoever is afraid of whom!" Wu Zhen was excited and spat a mouthful of phlegm on the ground.

Bridgemoorgen's mouth raised. According to his understanding, it is difficult for humans to catch up with rabbits. Even wolves and leopards in the animal world can rarely catch up with rabbits.

Pang Xiaonan and Li Yis are still working together to encircle and fight, but unfortunately, every time Pang Xiaonan is about to succeed, the rabbit seems to have oil on his body and slip out of Pang Xiaonan's hand.

While running, Li Yis suddenly stopped and bent down to pick up something.
To be continued...