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Seven hundred and ninety-four Supplementary knowledge

The grassland elephant has the intention of trampling Brother Flathead to death.

Too annoying.

He kept dangling in front of his eyes, acting like he was ready to fight.

It took a step forward, and the flat-headed brother immediately stepped back and circled around its body. The grassland elephant was on fire and couldn't get out. There was really nothing that could be done against the flat-headed brother.

The little thing is so flexible.

It was thirsty, and large-scale activities would continue to consume water in the body. After a period of entanglement, it simply stopped.

Liu Wei looked at the grassland elephant and said to Pangpang: "Sometimes when facing an opponent with a large disparity in strength, you don't necessarily need to defeat it to achieve the desired effect. Pangpang, you should learn more from Brother Pingtou on this point. What a provocative move!"

"Woof~hum~"

Pangpang snorted, since he didn't like this tactic.

But it actually had the effect the owner wanted to see.

Grassland elephants lower their heads and use their long tusks to pry up the soil and absorb moisture from the soil.

More than an hour passed.

The expert team contacted by Yoda hurried over.

After they learned that the water source was contaminated, they specially dispatched three water trucks and a forklift.

These large-scale equipment are provided by IFAW (International Foundation for Animal Welfare).

A middle-aged research expert from De Peng hurriedly walked up to Liu Wei, shook hands with him, introduced himself, and asked directly, "Liu, what's the situation now? Where is the water source?"

Three hundred meters ahead.

Because of the dry climate and too much water evaporation, the water level of the pond has dropped so much that it is impossible to see it when looking directly at it.

"OK! Liu, please take me there!" De Peng said.

Liu Wei took De Peng and the expert team there. The researchers extracted the water, tested the water quality, and used instruments to calculate the hydrogen compounds and heavy metal components in the water, which far exceeded the normal drinking water standards for wild animals.

"It's so abominable!" De Peng said angrily.

"What to do now?" Liu Wei asked.

"We can only fill up this pond!" De Peng said.

This is the most direct method.

However, heavy metals and chemicals in the water can also pollute the land, affect the growth of herbaceous plants, and may still cause animal poisoning.

Liu Wei believes that the expert team will formulate a detailed treatment plan. What he is most worried about now is, after this water source is filled up, where will the surrounding animals go to find water sources before the rainy season?

De Peng proposed his idea to Liu Wei: "We will contact the local government department as soon as possible to build an artificial reservoir in the shortest possible time and use pipelines to divert water from the Nile River Basin!"

Liu Wei shook his head slightly, "De Peng, this is not a simple drinking water project!"

De Peng said: "Actually, we started planning two years ago. The funds were provided by the foundation. Now we need the cooperation of local government departments!"

"I hope you can complete this project successfully!" Liu Wei said.

Depeng arranged for forklifts to fill the water source.

The grassland elephant is enjoying the moisture brought by the water wheel. After taking a sip, it sprays water on its body to dissipate heat.

It discovered that the water source was being damaged and ran over immediately.

Several experts couldn't stop it at all.

De Peng looked at the approaching prairie elephant and said to Liu Wei, "Liu! You need to continue to do its job!"

Hand pointing to the savanna elephant.

"give it to me!"

Liu Wei didn't let Brother Flathead and Pangpang get in this time, and walked towards the prairie elephant himself.

The water needed by the body is satisfied, and its mood is also much calmer.

Liu Wei reached out and stroked its ears, "The water there is not drinkable! We are working together to find a solution to the drinking water problem!"

The savanna elephant showed no anger and walked towards the right.

Liu Wei followed it.

It stopped suddenly, stretched out its nose and sniffed the body of the dead impala.

Then he raised his head and curled his nose and roared.

He seems to be venting his emotions.

It seemed to know the reason for the impala's death.

To be alive until now, this savanna elephant must have escaped from poachers many times.

After venting.

The grassland elephant looked back at Liu Wei, blinked, and put its long trunk on Liu Wei's shoulder.

Liu Wei stared into its eyes.

It was as if he could see the grievance on this "old man's" face.

"It's okay! As long as we are here, you will not be harmed!" Liu Wei held the elephant's trunk in his hands and gently stroked it to comfort him.

The grassland elephant did not stop the expert team from filling in the water source, and its huge body nestled on Liu Wei's shoulders.

It feels the most sincere kindness of mankind.

Been busy all night.

Liu Wei didn't sleep all night.

De Peng and several experts set up a temporary camp here and continued working.

Liu Wei took the grassland elephant back to the place where he camped last night.

Pack up the tent and turn on the live broadcast mobile phone.

The grassland elephants started their daily life of "eating, eating, eating" again.

Liu Wei faced the camera calmly, without mentioning anything about what happened last night, "Brothers, I'm sorry for the long wait.

After a night of hard work, I have developed a strong relationship with the prairie elephants.

Look! "

Walk up to the savanna elephant and stroke its body without any worries.

"Fuck~, what did we miss again?"

"Awei, how did you do it?"

"Your uncle, you always unblock it every time it is exciting. If you do this again next time, I will unblock it!"

"Hahaha, didn't we have regular programs in the past?" Liu Wei smiled, "The weather is still relatively cool now, so while the grassland elephants are eating, I will give you a brief introduction to grassland elephants.

In fact, the entire Elephantidae family has many of the same living habits.

We have seen Asian elephants and Borneo elephants before, and we have also learned a lot about elephants.

Now I will mainly give you some additional knowledge about African savannah elephants.

The first is its trunk. An elephant’s trunk is very flexible and cannot be separated from eating and drinking.

The tip of the savannah elephant's trunk is a finger-like protrusion. Unlike the Asian elephant, the Asian elephant has only one protrusion, while the African savanna elephant has two! "

Liu Wei squatted down to take a picture of the proboscis rolling grass. "Its trunk is more powerful than other elephants and can pick up objects weighing more than a ton."

"A ton! Damn, it weighs as much as a van!"

"When the proboscis comes out, it sweeps across the area!"

"I couldn't help but pinch my nose!"

"The elephant's trunk is really strong and flexible. Even if you put a peanut in it, it can pick it up!"

"This is called flexibility!"

"I suspect you're driving again!"

Liu Wei stood up and said: "When I introduced Asian elephants last time, I just mentioned that they use infrasound waves to communicate.

The propagation distance of infrasound waves is affected by airflow. Under normal circumstances, the propagation distance is about 11km. If the medium is uneven due to airflow, the propagation distance may be reduced by more than half. If in this case, similar people still need to continue To communicate, the elephants will stamp their feet together to produce a powerful roaring sound. This method can spread the sound up to 30 kilometers away.

Therefore, even though the soles of elephant feet have thick pads, they can still make deafening sounds.

The most surprising thing is that elephants can use their bones to conduct sound waves. The sound waves travel along the soles of their feet and through the bones to their inner ears.

In addition, the fat on the elephant's face can be used to amplify the sound to better receive the sound. This is the same as many underwater creatures. The industry calls this fat amplification fat. "

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