"This feeling is a bit poisonous, it's the first time I've been bitten by a mosquito after living for so long?" Xia Yuan looked at Ying Sitong suspiciously.

"Aren't I bitten every year?" Ying Sitong scratched the little red envelope in her hand with her hand, as if it was possible to fly out of it for 2 yuan.

"Then you don't know that they mutated because they sucked your blood?"

"The blood code doesn't say ......" Ying Sitong's brows frowned, like a poor kitten, "I still wonder how I get bitten every year." ”

"This feeling is a bit poisonous, I don't even think about it when I get bitten every year? I don't think they mutated because they sucked your blood?"

"Xia Yuan, are you idle?" Ying Sitong glared, "Who has nothing to do to catch mosquitoes to study?" According to your statement, do I have to track and investigate where the aunt towel I threw away has gone every month, and has it caused other species to mutate?"

What if it's eaten by cockroaches or rats?"

Xia Yuan pursed his lips, indicating that you are not stupid, you are lacking in heart.

But I think I heard some amazing information just now.

A blood clan that has survived for thousands of years, how can it still be patronized by relatives now?!

"Hmm...... So the ...... that was thrown away"

"you!" Ying Sitong angrily stood up and gave him a pillow on his face.

……

The Bloodline Watch Diary has opened a new branch:

Diary of Observation of Bloodline-Related Creatures.

It's not the first time that Ying Sitong has been bitten by mosquitoes, and she is not the only blood clan in the long history.

As early as the Three Kingdoms period, there was a blood clan, and there were no mosquito nets as sophisticated as they are now, and ordinary people could not afford to use them.

So it's certain that those blood clans that once existed were bitten by mosquitoes.

Where did those mosquitoes go?

Will they be reproductively isolated from other mosquitoes when they are transformed into blood mosquitoes?

Has there ever been a species of king mosquito that has successfully reproduced?

If so, what will they become?

Why haven't we discovered them to this day?

These are all question marks.

The emergence of blood mosquitoes gave Xia Yuan a new research direction.

Before, he didn't dare to rashly take the young woman of the blood clan herself as a living sample, because he was afraid that it might lead to a tragedy.

Now, through the Blood Mosquito, it may be possible to uncover some secrets related to the Blood Clan to some extent.

First of all, the conversion rate of mosquitoes into bloodlines is very low, which is in line with the content of the bloodline code about humans.

After being bloodstained by the Bloodline, there is a certain chance of survival, and there is a high probability of death.

Therefore, many mosquito corpses can be found next to Ying Sitong's bedside.

Many of them have become a blurry puddle of sticky because they have been trampled, and Xia Yuan can't get a specific number, which can be roughly estimated as a 100 to 1 conversion rate.

Mosquitoes, females feed on blood and males feed on the sap of plants.

So what is certain here is that the blood mosquitoes are all females, and the lifespan of females is about 3 to 100 days.

Their reproductive cycle is about 1 to 2 weeks, with 1,000 to 3,000 eggs laid each time.

In other words, if left unchecked, after a few weeks, there can be tens of thousands of mosquitoes in the home, and as long as the nutrition and living environment are suitable, the mosquitoes can reproduce in a large group of more than the total human population in a short period of time.

After some hard work, Xia Yuan and Ying Sitong caught a few more live blood mosquitoes.

One of them served as a control group and the others as study subjects.

"Blood Mosquito Observation Diary":

1. Blood mosquitoes are not resistant to low temperatures. When it is put in the refrigerator and the temperature is set to about 0 degrees, it will die quickly, which goes some way to explaining why the blood mosquito did not survive.

Winter is a large-scale mosquito eradication season, and after a winter they are almost extinct.

2. Non-purebred blood families cannot transform ordinary mosquitoes into blood family mosquitoes.

In order to verify this, Xia Yuan made certain sacrifices.

When Ying Sitong saw the tragic scene of him trying mosquitoes, a voice lingered in his heart for a long time-

Is this man stupid?

According to her thoughts, there is such a noble dedication and the spirit of inquiry into knowledge and the indomitable spirit of perseverance -

It's a shame that he doesn't go to a mental hospital.

3. It is uncertain whether there will be reproductive isolation after becoming a blood mosquito, because the observation period is limited and it is difficult to trace the breeding process, so no conclusion has been reached for the time being.

4. Under the action of external force, the blood mosquito will die, this external force does not need much, that is to say, although the blood mosquito is more agile and stronger, but it has not reached the degree of qualitative change against the sky, and can be killed by ordinary slapping.

5. The voltage generated by the electric mosquito swatter is effective for blood mosquitoes.

6. Mosquito coils are effective, but larger doses are required.

After a period of time, it is possible that the surviving blood mosquito will develop antibodies.

7. Chemical mosquito control is effective, for example, blood mosquitoes will be dissolved in aqua regia, nitric acid, strong alkali ......

But the cost is quite high.

……

The physical method is effective, but it requires manpower to extinguish, which is too inefficient.

They bought a mosquito killer lamp and found that the effect was very weak, and the blood mosquito could survive from it.

Then the low temperature method is also unreliable, and closing the doors and windows and turning the air conditioner to the lowest temperature cannot completely kill the mosquitoes in the house.

What's more, as long as Ying Sitong is bitten, new blood mosquitoes will be generated, and they can't live in a zero-degree environment all the time.

The cost of chemical methods is too high, the effect of mosquito coils is also limited, and blood mosquitoes have high resistance to mosquito coils, and they are useless after a while.

After more than ten days, Xia Yuan has not found an effective way to eliminate mosquitoes.

But on his body is already crawling with bags large and small.

The man is hopeless.

This is Ying Sitong's most instinctive thought.

And this idea is still gradually gaining weight and solidifying.

She didn't understand what Xia Yuan had taken a fancy to in the first place to combine with him.

"I'm giving up," Ying Sitong was watching TV on the sofa with her face kini on, her feet kicking back and forth, "Anyway, it will be fine in winter." ”

"I've ordered a good thing online. ”

Xia Yuan smiled, "It should work." ”

……