I'm really immortal

Chapter 459 Another Reproductive Isolation

Liu Changan has never given birth to a child with a woman, and of course he has never given birth to a child, let alone splitting off a descendant.

When he was not a human being, he did not inherit his genes or some kind of original animal or plant.

From the standpoint of any creature that needs to rely on reproduction to inherit life and maintain the existence of the species, this process is extremely significant.

It is not a great epic that can be described by any text, poetry, film and television work, novel drama, etc.

The birth of life, how many ethnic groups have gone through all kinds of disasters in order to reproduce and inherit, struggling to survive in the face of countless crises and catastrophes, looking for the little bit of opportunity to pass on life.

No matter how difficult and dangerous the environment is, there are hymns of life, deserts, snow-capped mountains, volcanoes, deep-sea trenches, on this small earth, there are countless lives.

There are also many genocides, because it is absolutely not a matter of course for life to be passed down.

Some genocides are even just bad luck.

Liu Changan has witnessed the disappearance and concealment of countless lives, the prosperity and growth, and even witnessed some creatures become indistinguishable over the long years.

As an observer, this is a very interesting thing, no less than feeling the vicissitudes of life brought about by the movement of the earth's crust.

But he has no descendants of inheritance, and he does not need inheritance, because he is inheritance,
Even so, he has tried, and tried with countless women, and there are thousands... and none of them can have a child with him or anything.

"They can't have children with me, it's not their problem, it's my problem." Liu Changan shook his head, "You can't either. You've been with me for so long, you haven't taken contraceptive measures, and you haven't been pregnant. Have you ever had a child, don't you know that?"

Su Nanxiu raised her hand and gently stroked her belly. Although there was nothing in it, as a woman, it is the most sacred expression of the beauty of life to create life in the belly with the person she likes. Way.

"I couldn't before, but that doesn't mean I can't now." Su Nanxiu tilted her head to look at Liu Chang'an and lifted her skirt, "If you don't believe me, try it."

Su Nanxiu's skirt just pressed down on the instep, her hands clenched into fists and grasped more fabric on the hips. The skirt swayed to reveal a delicate calf, and then the side seams of the skirt were separated, and a smooth and slender line Legs faintly.

The girl's body shows her amorous feelings in the small movements that mature women are good at.

"I've tried with you countless times, so don't talk about these things." Liu Changan was not tempted, but just smiled, "What's more, how can you try this kind of thing casually?"

Many things, I already know that there is no hope, how can I be casually aroused the desire to try again?What's more, the object of the attempt was Su Nanxiu... Once he tried it with her, could he still lift his pants and deny the account?That is simply endless trouble.

Su Nanxiu turned a deaf ear to Liu Changan's refusal, but a faint blush crawled up from her neck, crawling and crawling, just like her sheets that night were soaked in water and stained.

"It used to be before, now it is now..." Su Nanxiu came over, tugged at Liu Changan's sleeve, and let go, showing a certain look, "You used to be unable to have offspring with other women, yes Because of reproductive isolation, and their fragile bodies, they are unable to support the offspring of the Immortals."

Liu Changan looked at the pretty Su Nanxiu. The appearance of such a soft girl was of course just an appearance. Su Nanxiu obtained the ability of the vampire Mrs. Karnstein. Does she mean that after her body transformation, she has the ability to conceive with him. Ability of future generations?
"For eukaryotes, no matter how different they are in shape, reproductive isolation is the key to whether two groups can truly differentiate into different species. There are many types of reproductive isolation, ecological isolation, mechanical isolation, behavioral isolation, etc. Wait... just like elementary school students know that red crickets look almost the same as Fulton crickets, but because their chirps are different, they won't mate." Su Nanxiu frowned slightly and thought for a while, "If you say this to you If it is more difficult to understand, I will give a suitable example. Nowadays, many men and women communicate through social software, but many men do not notice that their emoticons are not in harmony with the woman they are after. Or the styles are very different, which will make it difficult for them to reach the unanimous will to mate. In fact, this is also a manifestation of reproductive isolation."

Liu Changan opened his mouth. It was the first time he had heard such nonsense about reproductive isolation.

"You don't need to explain to me, I am a student of biology, and I have communicated with Professor Crick. I am not a primary school student who needs popular science." Liu Changan felt that this example of Su Nanxiu was too inappropriate. For example, he sometimes Send An Nuan an emoji package like "On the Internet, cherish this relationship" with sparkling roses.

He believed that he and An Nuan had reached an unanimous desire for some kind of intimate behavior in the future.

"I know you must have thought about reproductive isolation, but most of your research has focused on genetic structure, genotype frequency and gene frequency. You have not considered the breeding environment that the mother can provide. The genetic instinct is to reproduce. , but if the reproductive process causes the pregnant woman to die, and her genes cannot be passed on, her genes will instinctively repel her eggs from being inoculated into fertilized eggs."

"Our children may have a gestation period of more than 266 days, maybe 2666 days, or even longer... How can ordinary women survive such a long pregnancy? What's more, we In the process of growing up, the nutrition and burden on the mother's body should also far exceed that of ordinary fetuses, which ordinary woman can provide?"

Su Nanxiu looked at Liu Changan with a thoughtful expression, took his hand and placed it on his soft belly.

Feeling the softness and tenderness of the tentacles, Liu Changan's palm had been pressed on it countless times and gently stroked, as if the palm also had a memory. Liu Changan came back to his senses and looked up at this familiar face in a trance.

He pulled out his palm, knowing this earlier, why bother?

"If that's the case... you can't afford it, and you can't provide it." Liu Changan shook his head, "You think you're no longer an ordinary person, but in my eyes, you're not much different from an ordinary person."

"How do you know if you don't try?" Su Nanxiu felt that Liu Changan's attitude was too inactive, completely unexpected to her.Fortunately, he used to be a scientific researcher. In the exploration of unknown fields, shouldn't he have the courage to try and actively try?Faced with her suggestion, he refused without even trying, which was really annoying.

"I also have children I like. If the breeding is purely for scientific research needs, I don't have a very strong will. You suddenly put forward such a suggestion, I can't accept it." Liu Changan showed a smile on his face, "Not to mention seeing Look at your Zhu Juntang, when I think that if I have a child with you, the one who is educated and looks like Zhu Juntang, I think it's better not to have this child."

Su Nanxiu was at a loss for words, and could not think of how to refute such a view.

"Let's talk when we have time." Liu Changan waved his hand and walked out of the warehouse.

Su Nanxiu came back to her senses, knowing that such a matter could not be rushed, and he might not be tempted at all... 100 years have passed, so what's the rush?
Su Nanxiu followed Liu Changan back to the house on the ground expressionlessly, watching Liu Changan walk out, Su Nanxiu called Zhongqing, her voice became mature and deserted: "Zhongqing, ban Zhu Juntang for a week!"

"Ah, why?"

"No why!"

The other side hung up the phone, and Zhong Qing looked back at Zhu Juntang, who had just returned from Zhonghai and was instructing the "doormaster" to run around with a plate in his mouth. Did the third lady do something to make the third wife angry? ——
The book review activity has started again. This time, the rewards are still extremely rich, and there will be very rare surprise rewards. You can pay attention.

　Many people like to read books while reading, and they like to criticize others. Why can't Liu Changan understand Su Nanxiu's indifference?Try to see your girlfriend drug your sister to make her sleep with a man she doesn't like, and you choose to forgive him?Everyone said that Liu Changan was a scumbag, a dog, right?Lick the dog?Must be dog licking, right?Remember to lick the dog's house.

　　In fact, it is your freedom if you want, but I don't want to write such a hero.

　　
　
(End of this chapter)