Ah Wei, I beg you, take it away!"

"It's ugly!"

"It feels like you're going to bite at any moment!"

"I can't see it, I slipped away first!"

There are many female fans who feel uncomfortable.

But at this time, the atmosphere in the live broadcast room has reached a climax, and male viewers like to torture female fans, and 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 belong to the same age as dinosaurs.

The dinosaurs are extinct, but the bats have survived.

There are now 961 species of bats on Earth, and they are the most abundant and widespread mammals on the planet after humans.

It accounts for about 20% of the total number of mammals. ”

"No!

The audience asked questions and exclaimed one after another.

If the number of bats is really as large as Liu Wei described, why are they 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 animals, and belonged to a vulnerable group, and later they found that hiding in caves could avoid being eaten, and gradually got used to cave life.

This habit makes them realize that they can better avoid the attacks of predators.

Similarly, after the advent of primates, bats also regarded primates as natural predators, including now.

However, they have developed a habit of avoiding enemies for thousands of years, so bats will choose to live away from natural predators. ”

"If humans and other mammals can enjoy the sun's moisture, bats enclose themselves in dark spaces.

50 million years ago, primates appeared, and bats at this time have evolved themselves into advanced animals that can reach most parts of the earth to survive, flying in the air, looking down on the reproduction and development of primates.

But they didn't take the initiative to harm any primates, otherwise there would be no humans today.

It can be said that bats are produced and reproduced by watching humans.

We need to be honored as elders!"

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

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

"Bats: Ridiculous humans who think they are the highest animals. ”

"Bat: Be careful I release the virus!"

Liu Wei looked at the barrage and said with a smile: "Brothers, according to the evolution of the earth's species, it is not an exaggeration to call you uncle."

We all know that the earth has experienced a total of five mass extinctions, including the huge natural catastrophe 65 million years ago, more than 90% of all living things disappeared from the earth, and the only ones who survived, and the best ones to survive, were bats. ”

"Awesome!"

"The desire to survive is extremely strong!"

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

"I have to say, I kind of admire it, it was able to survive several mass extinctions!"

Liu Wei: "Recently, I saw a promotional video about the bat's self-report, and I have to say that the video is very well made and gives us human beings a deep reflection.

I suspect that many viewers who have watched the video must have been shocked by the large amount of virus carried in the bats' bodies.

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

In the human body, different parts of the human body are distributed with different microbial communities, which have different effects on our body, and we divide microorganisms into eight types: bacteria, viruses, fungi, etc.

Viruses are a class of relatively primitive, life-specific, self-replicating, and non-cellular organisms that must parasitize in cells.

Like all living things, viruses have their own genes, which can replicate, evolve, and depend on biological entities for their existence, and their integrated life activities are carried out in the host cell.

Bats are home to a large number of microorganisms inside and outside their bodies, including viruses that initially killed bats, but later developed antibodies to bats through genetics and mutations.

The virus did not die, but lodged in bats, and no one could help anyone, the expansion of the virus was inhibited, and bats became the host of the virus.

The bat's mutated pterodactyl has played an important role in suppressing the virus.

The unique insertion of three amino acids in bat MHCI molecules leads to the extension of the α1 helix, and finally forms a unique "surface anchor", which enhances the stability of peptide binding and ultimately limits the immune escape of the virus.

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

It is important to know that every virus that lurks in bats can be fatal to another creature.

The bat itself is the natural host of more than 100 virulent viruses, and the source of transmission has become those animals that feed on it, mainly monkeys, civets, lemurs, raccoons, possums, cats, birds of prey, snakes, among which birds and snakes are the main predators.

So we can see that there is basically no direct connection between bats and humans, just like I have caught the most ferocious dog-headed bat, as long as I prevent it from being scratched or bitten, there is basically no transmission of the virus.

I've just seen a lot of barrage swearing bats, and I'd like to ask you why you have this idea?

Because it scares you because of its ugly appearance?

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

People evolved earlier than humans on the earth, people are not poisonous, people live in places that are difficult for you to find, almost never come to disturb your territory, and people eat insects to maintain ecological balance.

On what basis and in what right do we insult it?

This is also the place where that public service announcement film touched my heart the most. ”

The barrage gradually slowed down.

The audience was infected by Liu Wei's emotions.

The atmosphere at the moment is more like a touching speech.

"Suddenly I'm a little ashamed!"

"It's not easy for a bat, it's just trying to find a place where no one cares!"

"Ah~, it's uncomfortable! I don't know what to say?"

"Thank you, Ah Wei, for giving us a correct understanding of creatures like bats!"

Liu Wei put away his excitement and said with a faint smile: "Brothers, we must be clear about the fact that this earth is not only for us humans, we live on this earth with many animals and plants.

The so-called common life refers to the fact that each has its own area and boundaries, or we can understand it as their own living space.

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

Honestly, humans are too strong.

We need to reflect!

Protecting wildlife is not just an expression of love, but a deeper understanding of the world, and we need to not only survive ourselves, but also other things, so that we can achieve sustainable survival. ”