20. 10,000 kinds of sand sculptures to kill mosquitoes
"This feeling is a bit poisonous. The first time I've lived for so long, I've been bitten by a mosquito?" Xia Yuan looked at Ying Sitong in confusion.
"Aren't I bitten every year?" Ying Sitong scratched the small red envelope in her hand, as if 2 yuan might fly out of it.
"Then you don't know if they mutated because they sucked your blood?"
"The blood clan rules didn't say..." Ying Sitong frowned, like a poor kitten, "I'm still wondering why I'm 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 have mutated because they sucked your blood?"
"Xia Yuan, are you so idle?" Ying Sitong stared at her eyes, "Who is going to catch mosquitoes for research? According to your statement, do I have to track and investigate where the auntie scarf I threw away went every month, and whether it has caused other species to mutate?
What if I get eaten by cockroaches or rats?”
Xia Yuan curled his lips and said that you are not stupid, you are not stupid.
But I seemed to have heard some amazing information just now.
A blood clan that has survived for thousands of years still has relatives to visit?!
"Well...so I was thrown away..."
"Go to die!" Ying Sitong stood up angrily and gave him a pillow on his face.
...
"Diary of the Vampire Observation" opened a new branch:
"Diary of Observation of Biology Related to Vampires".
This is not the first time Ying Sitong has been bitten by a mosquito, and she is not the only blood clan in the long river of history.
There were blood clans as early as the Three Kingdoms period. In that era, there was no such sophisticated mosquito net as it is now, and ordinary people could not afford it.
So it is certain that those blood clans that once existed were bitten by mosquitoes.
Where did those mosquitoes go?
Will they become reproductive isolation from other mosquitoes when converted into blood clan mosquitoes?
Is there a kind of overlord mosquito that has successfully reproduced?
If so, what would they become?
Why haven't we found them yet?
These are all question marks.
The emergence of the blood clan mosquitoes gave Xia Yuan a new research direction.
I didn't dare to rashly use the young woman of the blood clan as a sample before because I was worried that it might lead to a tragedy in a row.
Now, through the blood clan mosquito, some secrets related to the blood clan may be revealed to some extent.
First of all, the conversion rate of mosquitoes converted into blood clans is very low, which is consistent with the content about humans in the blood clan code.
After being given blood by the blood clan, there is a certain chance of surviving and a high probability of death.
Therefore, many mosquito corpses can be found beside Ying Sitong's bed.
Many people become vague pools of sticky objects because of being trampled. Xia Yuan cannot get specific numbers, and can be roughly estimated as a conversion rate of 100 to 1.
Mosquitoes, females feed on blood, while males feed on plant juice.
So what is certain here is that the blood clan mosquitoes are all females, and the lifespan of females is about 3 to 100 days.
Their breeding cycle is about 1 to 2 weeks, and they lay 1,000 to 3,000 eggs each time.
In other words, if they are left alone, in a few weeks, the number of mosquitoes in the home can reach tens of thousands. As long as the nutrition and living environment are suitable, mosquitoes can reproduce in a short period of time that exceeds the total human population.
After some effort, Xia Yuan and Ying Sitong caught several blood clan mosquitoes.
One of them was used as the control group and the other several were used as the research subjects.
"Diary of Observation of Vampire Mosquitoes":
1. Vampire mosquitoes are not resistant to low temperatures. When it is placed in the refrigerator, it will quickly die by adjusting the temperature to about 0 degrees, which explains to some extent why Vampire mosquitoes did not survive.
Winter is a large-scale mosquito killing season, and after a winter, they almost disappeared.
2. Non-purebred blood races cannot convert ordinary mosquitoes into blood race mosquitoes.
In order to verify this, Xia Yuan made some sacrifices.
When Ying Sitong saw the tragic scene of him testing mosquitoes with her body, a voice lingered in her heart for a long time-
Is this man stupid?
According to her ideas, she has such a noble spirit of dedication, a spirit of inquiry into knowledge and an indomitable persistence-
It's a pity that he doesn't go to the mental hospital.
3. It is uncertain whether reproductive isolation will occur after becoming a blood clan mosquito. Because the observation period is limited and it is difficult to trace the reproduction process, no conclusion has been drawn yet.
4. Under the influence of external forces, the blood clan mosquito will die. This external force does not need to be very large. In other words, although the blood clan mosquito is more agile and stronger in its body, it has not reached the level of qualitative change and deterioration. It can still be killed by ordinary slap.
5. The voltage generated by the electric mosquito swatter is effective for the blood clan mosquitoes.
6. Mosquito coils are effective, but require a larger dose.
After a period of time, the surviving blood clan mosquitoes may produce antibodies.
7. Chemical killing of mosquitoes is effective, such as blood clan mosquitoes that will dissolve in aqua regia, nitric acid, and strong alkali...
But the cost is quite high.
...
Physical methods are effective, but manpower is required to extinguish them, which is too inefficient.
They bought a mosquito-killing lamp and found that the effect was very weak, and the blood clan mosquitoes could survive from it.
Then the low temperature method is not reliable. Close the doors and windows to turn on the air conditioner to the lowest temperature and cannot completely kill the mosquitoes in the house.
What's more, as long as Ying Sitong is bitten, new blood clan mosquitoes will be produced, and they can't always live in a zero-degree environment.
The chemical cost is too high, and the effect of mosquito coils is very limited. Vampire mosquitoes are highly resistant to mosquito coils, and will be useless after a while.
After more than ten days, Xia Yuan has not found an effective way to eliminate mosquitoes.
But his body was covered with bags of all sizes.
This man is beyond help.
This is Ying Sitong's most instinctive idea.
And this idea is gradually aggravating and solidifying.
She herself didn't understand what was the point of Xia Yuan that she was interested in and united with him.
"I gave up," Ying Sitong lay on the sofa with a face-wearing Keni and watched TV, kicking back and forth with her feet, "It will naturally be fine in winter anyway."
“I have ordered something good online.”
Xia Yuan smiled, "It should work."
...
Chapter completed!