"However, despite this, the cheetah is still the fastest cat and the fastest animal on land."

"The reason why a cheetah can run so fast is related to its streamlined body, long tail, strong heart and lungs, light bones and other factors."

"Come and listen to Harley's heartbeat."

Bi Fang called out to the drone, which immediately flew to his side and approached Harley at the same time.

Harley was very curious about the big black bird-like thing. He stretched out his hand and tried to take a picture of it. Unfortunately, he was held down by Bifang. Unable to move, Harley allowed the audience to hear its strong heartbeat.

"You guys pay attention to the cheetah's exhalation and inhalation, and then pay attention to its heartbeat."

【emmm, what happened? 】

[Why didn’t I hear anything?]

[Let’s talk about it in a big way]

[If you say that, I can’t keep a low profile. It’s actually very simple. Just listen carefully and you’ll know. Do you understand? 】

【Are you across here from here? 】

[Drag him out and he will be killed!]

"Hahaha, I've made it quite obvious. Listen, when a cheetah inhales, its heartbeat speeds up, but when it exhales, its heartbeat slows down."

"In humans, this would be respiratory sinus arrhythmia, a minor condition of irregular heartbeat, but it's normal in cheetahs."

"This is because the cheetah's body needs a lot of ability to accelerate in order to adapt to high-speed running. When inhaling, the heartbeat accelerates to promote the supply of oxygen to provide high energy to the muscles. When exhaling, the heartbeat decreases to allow carbon dioxide to be discharged at a normal speed."

【Awesome】

[It’s over, why do I feel like I have the same problem?]

[Watching the live broadcast, I can see something is wrong (devastated)]

【What happens if there is irregular heartbeat?】

"Don't worry, it won't be bad. Sinus arrhythmia itself will not have an impact on the body. It is just a clinical manifestation. Normal people will also have it, especially when they are tired, drink alcohol, drink coffee, or have insomnia. Get more rest.

It’ll be fine.”

[Thank you Dr. Fang]

[After listening to Dr. Fang’s words, my legs are no longer sore, my waist is no longer painful, and I can go up to the eighth floor in one breath]

[You know how to rhyme]

【skrskr】

After a simple lunch, Bi Fang replenished his water supply and continued on the road with Harley.

As the geographical location moves further and further north, the vegetation on the surface gradually becomes sparser, and many places even change from the original hard soil to sandy land.

“I don’t know how many days there will be until the wet season arrives, it should be these days.”

Looking at the dry land around him, Bifang felt as if all the moisture in his body was being lost, as if it was being sucked away by the earth beneath his feet.

The temperature is obviously not high, but I still have such an illusion.

At the same time, a small plant on the ground also attracted his attention.

"Yesterday I showed how to track animals to find water sources. In fact, normally, the roots of many plants can also meet our needs. Look at this."

Bi Fang knelt down and lifted up the plant that looked like tree roots.

It was a plant that looked like roots, and it didn't have many branches. It was questionable whether it was even ten centimeters tall.

It really uses inconspicuousness to its mechanism, and normal people won't even take a second look.

But Bi Fang recognized it at a glance.

Harley behind him took this opportunity to lie down on the ground and rest.

【What is this】

[Can replenish water, cactus (confirmed)]

"Hey, you guys guessed it right, this is a cactus."

Bi Fang took out his dagger, inserted it directly into the soil, dug up the hard soil pit, and then dug up the soil.

"This is a cactus plant called Odia. It is not a cactus in the traditional sense, but its roots are very large. When they are hungry and thirsty, many African natives will look for this plant to quench their thirst."

"But it's harder to find. You can tell by its appearance how inconspicuous it is. It's no different from a normal tree root."
Chapter completed!