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"Awei, I beg you, please take it away!"

"too ugly!"

“It feels like I’m going to bite someone at any moment!”

"I can't stand it anymore, let's run away!"

Many female fans felt uncomfortable.

But at this time, the atmosphere in the live broadcast room has reached extreme levels. Male viewers like to torture female fans. The greater the reaction of female fans, the happier they feel.

Liu Wei shook his head and smiled, and said seriously: "Brothers, bats have lived on the earth for 88 million years and are creatures that are contemporary with dinosaurs.

The dinosaurs became extinct, but the bats survived.

There are now 961 species of bats on the earth. They are the most numerous and widely distributed mammals on the earth after humans.

Accounting for about 20% of the total mammal population. "

"No way! So many!"

The audience raised questions and exclamations one after another.

If the number of bats is really as large as Liu Wei described, why are they so rare in life?

Liu Wei looked at the barrage and explained: "80 million years ago, bats were used as food by pterosaurs and various birds and beasts, and they were a vulnerable group. Later, they discovered that hiding in caves could avoid being eaten, and they gradually became accustomed to caves. Life.

This living habit allows them to realize that they can better avoid attacks from natural enemies.

Similarly, after the emergence of primates, bats also regarded primates as natural enemies, even now.

However, the habit they have developed over thousands of years is to avoid enemies, so bats will choose to live far away from natural enemies. "

"If humans and other mammals can enjoy the nourishment of sunlight, then bats close themselves in a dark space.

50 million years ago, primates appeared. At this time, bats had evolved into advanced animals that could reach most areas of the earth and survive. They flew in the air and overlooked the reproduction and development of primates.

But they did not actively cause harm to any primates,

Otherwise, there would be no human beings today.

It can be said that bats watched humans emerge and reproduce.

We have to respectfully call ourselves elders! "

"Hahahaha, why don't you call me grandpa?"

"Bat: I think back then, when you humans were still monkeys, I had been living on the earth for tens of millions of years!"

"Bats: Ridiculous humans actually think they are the most advanced animals."

"Bat: Be careful I release the virus!"

Liu Wei looked at the barrage and smiled: "Brothers, in order of the evolution of species on earth, it is not an exaggeration to call them uncle.

We all know that the earth has experienced five mass extinctions, including the huge natural disaster 65 million years ago. More than 90% of all living things disappeared from the earth, and the only ones who survived and lived the best were bats. . "

"Awesome!"

"You have a strong desire to survive!"

"I didn't expect you to be such a bat!"

“I have to say, I’m a little impressed by it, it’s actually been able to survive several mass extinctions!”

Liu Wei: “Recently, I saw a promotional video about a bat’s autobiography. I have to say that the video was very well made and gave us humans a profound reflection.

I guess many viewers who watched the video must have been shocked by the large number of viruses carried in bats.

In fact, humans, like bats and all animals, are inhabited by microorganisms both inside and outside the human body. The number of microorganisms in humans exceeds the number of known cells in the human body.

Within the human body, different microbial communities are distributed in different parts, which have different impacts on our bodies. We divide microorganisms into eight types: bacteria, viruses, fungi, etc.

Viruses are a relatively primitive, non-cellular organism with life characteristics that can replicate itself and must be parasitic in cells.

Like all living things, viruses also have their own genes. They can replicate, evolve, and rely on biological entities to exist. All of their life activities are carried out within the cells of the host.

There are a large number of microorganisms inside and outside the bat's body that coexist with it, including viruses. These viruses initially killed bats, but later bats developed antibodies to them during the process of inheritance and mutation.

The virus did not die, but lodged in the bats. No one could do anything about it. The expansion of the virus was suppressed, and the bats became the host of the virus.

The mutated chiropterans of bats play an important role in suppressing viruses.

The insertion of the unique three amino acids in the bat MHCI class molecule leads to the extension of the α1 helix, and finally forms a unique "surface anchoring", which enhances the stability of polypeptide binding and ultimately achieves the effect of limiting viral immune escape.

In addition, during the long-term evolution and mutation process, bats have strong DNA damage repair capabilities and a high level of background innate immune system.

You must know that every virus lurking in bats may be fatal to another organism.

The bat itself is the natural host of more than 100 kinds of virulent viruses, and the source of transmission has become the animals that feed on it, mainly monkeys, civets, lemurs, raccoons, opossums, cats, raptors, and snakes. Birds and snakes are the main predators.

So we can see that there is basically no direct connection between bats and humans. For example, although I have caught the most ferocious dog-headed bat, as long as I prevent being scratched or bitten by it, there will basically be no spread of the virus. .

I just saw a lot of barrages cursing bats. Here, I want to ask everyone, why do you have such thoughts?

Because its ugliness scares you?

Or is it because you think it is a low-level creature?

They evolved earlier than humans on the earth. They are immune to all poisons. They live in places that are hard to find. They almost never disturb your territory. They eat insects to maintain ecological balance.

Why do we have the right to insult it?

This is also the place where the public service announcement touched my heart the most. "

The barrage gradually slowed down.

The audience was infected by Liu Wei's emotions.

The atmosphere at this moment was more like a touching speech.

"Suddenly I feel a little ashamed!"

"It's so difficult for bats! It just wants to find a place where no one cares about it to live!"

"Ah~, I feel so uncomfortable! I don't know what to say?"

"Thank you, Awei, for letting us have a correct understanding of creatures like bats!"

Liu Wei put away his excitement and smiled lightly: "Brothers, we must be clear about the fact that this earth is not just for us humans, we live on this earth together with many animals and plants.

The so-called living together means that each has its own area and boundaries, or we can understand it as its own living space.

While we enjoy our own living space, we must not trample on the living space of other creatures.

To be honest, humans are too strong.

We need to reflect!

Protecting wild animals is not just an expression of love, but a deeper understanding of the world. We must not only survive for ourselves, but also enable other things to survive. Only in this way can we achieve sustainable development. "