It's not often that animals are shy in the face of humans.

The more shy the little camel, the more Liu Wei thinks it is cute, although its appearance looks a little rough, far from being compared with the giant panda, these cute masters, but the simple character can often hit the soul and make you love it.

Wait until the baby camel raises its head again.

The phone's lens focuses on its face.

Liu Wei smiled at the little camel and said: "Brothers, listen carefully, I have a lot of knowledge about wild camels, first of all, let's start with this species."

When we think of wild camels, we naturally think of domestic camels and compare them to them.

The roots of domestic camels were acquired by humans through the domestication of wild camels, but since their reproduction, the genetics between them have changed greatly.

According to scientific estimates, the genetic difference between wild Bactrian camels and domestic camels is 2%-%, and from a genetic point of view, the difference is huge, and we should treat wild camels as a separate species. ”

"No, it's not like that!"

"I thought it was just a physical difference!"

"The genes have changed!"

"Reminds me of wild boars and domestic pigs!"

“......”

Liu Wei continued: "So I will now popularize wild camels as a separate species.

Let's start with its face.

You should be curious, why are wild camels able to move normally in the wind and sand?

The reason for this is the special structure of its head.

When it comes to blocking the wind and sand, it can be said that no animal in the world is better than the wild camel!

Its eyelashes and ears are long and dense with hairs that prevent wind and sand from entering its eyes and ears, and it has double eyelids that can be opened and closed separately on both sides, allowing it to maintain clear vision in the sand.

Do you know what an eyelid is?"

The audience looked confused.

Basically, I have never heard of this technical term.

Liu Wei looked at the barrage and sighed, sure enough, watching the live broadcast was all for the sake of watching the excitement, and when it came to cultural common sense, the collective question mark face.

Liu Wei didn't play with the young camel's eyes, fearing that the female camel who was drinking water would think it was hurting her baby and then produce a behavior similar to spitting saliva.

Flip the live camera to focus your eyeballs.

Liu Wei gently lifted his eyelashes and opened his upper eyelids, "You look at my eyeballs carefully, and the eyelids are in this position in front of my eyeballs."

The eyelid is composed of skin, connective tissue, muscle, gland and conjunctiva, and the eyelid is divided into upper and lower eyelids, which is an important structure to protect the eyeball, and the wild camel has double eyelids, which is equivalent to double protection for the eyeball. ”

Liu Wei let go of his hand and blinked his eyes, tears almost flowed out.

"Hahaha, it's too difficult for Ah Wei to meet our group of fans!"

"Awei, I still don't understand, what should I do?"

"Laughing and crying, are you going to be angry with Ah Wei?"

"Ah Wei, I'm a sister, come and I'll blow your eyes!"

"Get out!" Liu Wei said in disgust and continued to popularize science, "Speaking of ears and eyes, let's take a look at its nostrils, there are valves in the nostrils of wild camels, I know you have to ask what the valves are again?"

I'll just get straight to it!

Valves are membranous structures that can be opened and closed in human or some animal organs, and in human organs, they mainly refer to the valves of the heart, and each person has four valves in their hearts.

That is, the aortic valve that connects the left ventricle to the aorta, the pulmonary valve that connects the right ventricle to the pulmonary artery, the mitral valve that connects the left atrium to the left ventricle, and the tricuspid valve that connects the right atrium and right ventricle.

They both act as one-way valves, so that blood can only flow from one direction to the other and cannot flow backwards.

The valve in the nostrils of wild camels plays the role of a valve like the human heart valve, which can be opened and closed at will, which can not only ensure the smooth breathing, but also prevent the wind and sand from pouring into the nostrils, and the water flowing out of the nose can also flow down the nasal groove to the mouth.

At this point, I would like to ask if anyone in the live broadcast room has ever tried to drink water through their nose?"

"I feel like Ah Wei is digging a hole for us!"

"I can't hide it, I've done it!"

“＋1”

"All I can say is ...... Unfold...... Serve!"

Liu Wei smiled: "Fortunately, it all flowed into the mouth, not into the brain!"

The audience didn't react immediately.

"Wait, Ah Wei, will you talk about it again?"

"Did you just want to say that we got water in our brains?"

"Damn, I'm just reacting!"

"Ah Wei, you are inflated, you dare to laugh at the audience, laugh at your food and clothing!"

Liu Wei looked at the barrage and smiled: "Just kidding with everyone and adjusting the atmosphere."

Let's go on to say, through what I just explained, you should have an overall impression in your mind, that is, the wind and sand cannot pour into the face of wild camels, so they can wear it in sandstorms, and if they encounter sandstorms and strong sandstorms, they will stop to find a safe position, close all the organs of their heads, and then bend their limbs and lie on the ground and shrink their bodies, waiting for the sandstorm to pass. ”

"I know this, like an ostrich!"

"Sandstorms are usually very short-lived, they pass quickly, but they are very destructive!"

"I've watched a lot of TV dramas like this, and when you encounter this kind of weather in the desert, you have a good chance of surviving with a camel. ”

"Ah Wei, do you think you will encounter a sandstorm today?"

"Poof~, crow's mouth, can you hope that Ah Wei will be good?"

Liu Wei looked at the weather, "The weather in the desert Gobi Desert is abnormal, I'm not sure, if it really happens, the brothers can only pray for me!"

Smiling, Liu Wei was still very calm in his heart, walked to the side of the little camel, pointed his mobile phone at the two humps that the little camel had just formed, and said: "Everyone should be familiar with this raised thing! When it comes to camels, the most representative physical feature and the first thing that comes to our minds should be the hump."

Let me look at the barrage, how many people know about the hump of a camel?"

"I know, it's to store water!"

"There's a lot of water in it!"

"It's the one that stores water!"

Liu Wei looked at the barrage and shook his head, "Brothers, you are still living in the past!"

The audience didn't understand what Liu Wei meant, and the department put a question mark.

Liu Weipu said: "In the past, it was intuitively felt and speculated that the camel's hump was used to store water, but after scientific research, the main structure of the surface hump is fat and connective tissue.

It can be understood that the hump stores fat, and the size of the hump will also change due to the consumption of the wild camel's body, but it will quickly return to its original state when it is replenished with sufficient food and water.

The connective tissue is composed of cells and a large number of intercellular fluids, and the intercellular interstitium of connective tissue includes liquid, colloidal or solid matrix, filamentous fibers and interstitial fluid that is constantly circulating and renewing, which has a variety of functions such as connection, support, nutrition, and protection. ”

There are still a full screen of question marks on the live broadcast phone.

"Ah Wei, what are you talking about?"

"I feel like I'm listening to a book from heaven!"

"Ah Wei, forget it!"

"Laugh and cry, I'm sorry, Ah Wei, I have no face to be your fan!"

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