Video spoilers history, starting with the blitzkrieg on Poland

And soon a new sky appeared.

A scene of pristine prairie appeared in the camera.

Then a few monkey-like creatures stepped onto the grassland.

【Hello everyone, welcome to our show. 】

[Today we are going to talk about the most brutal hunter on this blue planet. ]

[A large beast that roams the world! ]

[It doesn’t have the fangs of a saber-toothed tiger or the bite force of a Tyrannosaurus Rex, but it killed 74% of all large mammals that have become extinct.]

【It is called the creature standing at the top of the food chain! 】

【The terrifying erect ape! 】

[And yes, this terrifying upright ape standing at the top of the food chain is our ancestor. ]

[Top-level large predator beast! ]

【Humanity! 】

……

Outside the sky.

Shang Dynasty.

Emperor Xin looked at his own burly figure, and then looked at E Lai, who was standing next to him and was wearing armor and was even taller and stronger.

Di Xin said:

“Humans are large beasts?”

"Although I am still tall, you, E'lai, are like an iron tower when you put on your armor and ride on your horse."

"But no matter how you look at it, humans have nothing to do with large beasts."

"Take the tiger you killed last year."

"That tiger is almost three times bigger than you."

"It has to be like a rhino or a tiger to be called a large beast."

"Compared to jackals, humans are pretty big."

"But no matter how you look at it, humans can only be considered a medium-sized beast."

King Zhou's doubts were also the first thoughts of most people.

Because most people, including modern netizens and ancient people, would not associate themselves with large ferocious beasts.

【But many friends may say. 】

[Although I am big and have a lot of flesh, I am powerless, so how can I be considered a large beast? ]

[The reason why humans can become the captain of the earth is mainly due to their IQ, not how strong their physical hardware is. ]

[He also said that humans are weaklings when facing wild beasts. ]

[If you want to think so. ]

【That's totally wrong. 】

[First of all, humans are definitely worthy of the title of large beasts. ]

[First, let’s look at the zoological community’s definition of giant animals, which is an average weight of more than 46 kilograms. ]

[How is it? Do the friends in front of the screen meet the standards of giant animals? ]

【Humans have surpassed more than 99.99% of animals. 】

[It is an absolutely large beast. ]

[Even if we ignore the extremely high intelligence of humans and the various hunting tools they have invented. ]

[Just from the perspective of human hardware conditions, humans can definitely be called top predators. ]

[First take a look at our most abnormal evolution configuration:]

[For example, this pair of ordinary feet hides the devilish setting of walking upright. ]

[When quadrupeds were still moving forward by swinging their spines, our ancestors unlocked the perpetual motion machine mode millions of years ago. ]

[The vertical spine increases lung capacity by 40%, and blood oxygen exchange beats those who walk on four legs. 】

[Modern people consume 0.75 calories per kilogram per hour of hiking. 】

[And chimpanzees use 1.5 calories to move on all fours! ]

【The energy consumption difference is exactly twice! 】

[Do you know what this means?] [Under the scorching sun on the African savannah, when an antelope ran at a speed of 60 kilometers per hour to avoid the cheetah's pursuit, thinking that it had escaped, the real death had just begun.]

[Archaeologists found traces of the site in Kenya. 】

[Homo sapiens can chase prey for more than 40 kilometers in 20-degree heat. ]

[Until the other party runs to death! ]

[This trick is called endurance hunting, and it is unique in the mammal world.]

The sky screen also gives a picture comparison - a graph of the endurance of humans hunting gazelles.

It can be seen from the picture that humans’ latecomer advantage is very obvious.

Why did ancient humans have such strong endurance?

[Because the 500 million sweat glands on our skin are an evolved biological water cooling system. ]

[A zebra will get heat stroke if it runs at full speed for 5 minutes, but humans can run at a speed of 28 kilometers per hour for 1 hour! ]

[Experiments have shown that in an environment of 35 degrees, humans' long-distance running ability is more than three times that of mammals of the same size.]

【With all-weather hunting BUFF. 】

[From the Sahara to Siberia, this 37-degree constant temperature body has an all-terrain adaptability hook! ]

[Whether it is the freezing cold of the Arctic or the scorching heat of the equator; whether it is the arid desert or the humid rainforest, there are human footprints. ]

[Strong adaptability and tolerance! 】

[Compared to polar bears who need to consume 1.2 calories a day, humans can light up the technology tree with 5000 calories. ]

【Do you know the metabolic efficiency of soldiers when they are marching? 】

[Carrying 40 kg of weight and walking 60 kilometers for many consecutive days, the camels would call him daddy! ]

Barrages of comments also flew out.

"Humans are weak with bare hands, and are only good at targeting top predators such as lions, tigers, leopards, and bears."

"As for ordinary people like cats and dogs, don't mess with the upright ape."

"Human endurance is almost unrivaled."

"Humans are the ultimate endurance creatures on Earth. At least for now, no other animal can run a marathon without interruption."

"Cheetahs are the fastest, but they can't last 20 seconds."

"It's okay, 20 seconds is also impressive."

"The scene where three Maasai people chased a group of lions really shocked me."

"Sweat glands are the most powerful part of human beings. A strong person is not afraid of any threat from wild beasts."

"It is precisely because of the good heat dissipation that we dare to use a CPU as high as the brain. "

"Why do I remember humans and horses having a running competition, and humans couldn't outrun horses?"

"But that race was only 30 or 40 kilometers, which is not yet within the comfort zone of human endurance."

《And don’t think that horses are good food! 》

"The only thing that can compare to humans in terms of cooling system is horses, but horses have a disadvantage, which is that they cannot absorb energy well."

"Humans can eat and drink while running, but horses cannot and digest more slowly."

"In ancient times, during long-distance marches, cavalrymen led their horses, and the men carried the loads and things, while the horses did not carry anything."

Outside the sky.

Han Dynasty.

Huo Qubing was a general with rich experience in fighting in the desert.

I recall that when I led my troops on expeditions, I often had to run hundreds of miles across the vast desert and cross desolate lands.

Huo Qubing also said with emotion:

"The soldiers carried heavy bags on their backs, braved the scorching sun and strong winds, and marched deep into enemy territory on long raids."

"When you think about it this way, our human endurance and stamina are actually not inferior to war horses and camels."

"The soldiers' endurance is indeed the key to defeating the enemy."

"Of course." Huo Qubing added, "You can't walk very far on your own two feet."

"I want to have fun in the Xiongnu's territory."

“Horses are still indispensable.”

"Otherwise, we won't be able to bring too many supplies, and we can only travel in the Xiongnu territory for seven days at most." (End of this chapter)