Only when you actually enter the river do you realize that there is much more to the crocodiles than those that climb onto the shore to bask in the sun.

Sections of "dead wood" floated to the surface without warning, as if they had been buried under the mud of the river, until the rafts on the river stirred the current, dispersed the sediment, and allowed the big pieces to float.

Tens of millions of viewers in front of the screen know what these dead woods are, out-and-out Nile crocodiles!

They are not those little crocodiles called Nile crocodiles in the Egyptian desert, in fact, West African crocodiles, with an average body length of less than 1.7 meters, but an average adult male with an average length of 3.5 meters and an average body length of more than 4 meters in the prime of life!

The space is three-dimensional, and the body length doubles, and the weight rises exponentially.

The West African Nile crocodile is one meter five in length and weighs no more than thirty kilograms, while the Nile crocodile of three meters and five can weigh a terrifying three hundred kilograms, compared to the doubling of the body length, the weight has directly increased tenfold!

If two crazy crocodiles really had to attack forcibly, they might be able to overturn the entire raft and fall into the water when the time comes.

The audience who realized this was all frightened, and for a while, the audience in the live broadcast room and the number of barrages surged at the same time.

[That's a lot, that's too much, right? The feeling on the surface of the light water is in double digits]

[How many crocodiles are there here, the great rivers of Africa are too terrifying]

[Damn, you won't really attack, right?]

[It's all out at once, and I feel too keen, right?]

Compared with the panicked audience, Bi Fang seemed to be an old god, and he was not worried, he had experienced too many similar scenes.

Facing the battlefield for the first time, recruits will fight in two ways, but veterans of a hundred battles will never be possible.

"Just looking at the appearance, the Nile crocodile is full of scale armor, and many people will subconsciously think that their touch is very weak, just like the skin wrapped in calluses is often duller than normal skin, in fact, on the contrary, the Nile crocodile has many sensory organs on its body surface, which is more sensitive than the normal skin of humans."

As soon as this remark came out, all four were shocked.

How can scales, which look so thick, be more sensitive than human skin?

Isn't that a joke?

In fact, more than 100 years ago, people found that there are many small black spots protruding from the head, jaws, mouth and teeth of crocodiles.

"In the developing caiman and its embryos, small black spots appeared on its head before the skin began to divide and form scales, and the Nile crocodile was even more exaggerated, with an additional small black dot all over the body, which was considered a unique organ at the time."

"But what exactly these organs do, I have always known very little before, and now we have a general understanding, in fact, from the name we can roughly understand its function."

"Those protruding black dots are unique sensors, and we call them dome pressure receptors, or epidermal sensory organs, which are sensory organs."

"But the crocodile's epidermal sensory organs are completely different from those of other vertebrates, and it combines the sense of touch, heat and cold, and the detection of chemical stimuli to evolve into a high-level armor-like sensitive skin, even much more sensitive than our human skin."

"This means that crocodiles can detect surface pressure waves, react to changes in water pressure, track the movement of prey in the water, and quickly spot prey even in the dark."

"At the same time, heat sensitivity allows them to maintain their body temperature by alternating between sun exposure and access to cold water, and chemical sensing helps them find the most suitable habitat."

This is also the reason why Bi Fang has to use a prop instead of a rowing oar, which causes much more water waves than a prop, which is easier to attract the attention of crocodiles.

Whether the crocodile dares to attack or not, it can attract less attention or less.

[This is too exaggerated, isn't it?]

[Is it so awesome? 】

[No wonder Lao Fang's raft entered the water, and all the crocodiles in the vicinity reacted]

[The miracle of living things, natural evolution is amazing]

Bi Fang nodded and said: "It is indeed amazing, the sensory organs of other vertebrates cannot be compared, for example, in our skin, it is a distributed sensing system, and the crocodile concentrates this distributed sensing system into a distributed multisensory miniature organ." ”

"More specific related papers were published in the central journal "Evolution and Development", if you are interested, you can check it out."

The practice of throwing papers without saying a word, the audience is now a little used to it.

This also proves Bi Fang's professionalism even more, at least other wilderness survival streamers don't have such ability at all.

Not everyone has a memory palace.

"But we don't have to worry about it for the time being, if the crocodiles really want to attack, you can't see them surface, and if they can surface, it means that they don't have any desire to attack for the time being."

Crocodiles usually float on the surface of the water, exposing only their eyes, mouth, and nose.

It looks like basking in the sun, but it's actually a standard action for ventilation.

"If the crocodile really intends to attack, it is impossible to reveal its body, but will lurk quietly, after all, who would not let the enemy see themselves before launching a sneak attack, this is too stupid."

"In addition, the crocodile has a keen sense of the body, and it is still a farsighted eye, so it can better observe the state of its prey underwater."

Crocodile is an out-and-out heavy farsighted eye, now these tens of meters away, they are completely unable to see, on the contrary, due to the different refractive index of light in water and air, crocodile can rely on body sensation to observe more clearly.

"Now I came out for a breath, probably because I was alarmed, and after some observation, I just came up for a breath."

"Besides, we're on a raft, and the whole target is too big for the crocodiles, and they won't attack easily."

Bi Fang calmly analyzed, and slowly pulled out the support in his hand from the silt.

For crocodiles, the whole raft is too big, perhaps the length of the raft itself is only more than three meters and less than four meters, which is not as good as some well-developed Nile crocodiles, but Nile crocodiles are not more than two meters wide!

The area of the entire raft is close to eight square meters, plus Bi Fang standing upright, the overall height is more than two meters, and the volume is close to 16 cubic meters.

Maybe what is the king of hippos?

Even ordinary hippos don't dare to attack, let alone the king of hippos.

That's probably what the crocodiles think.

[It's too 6, Fang Shen is really pinching with a handle, and the crocodile psychology is pinched]

[This is probably the great god]

[The crocodile's bottoms are all touched]

[Bottoms? Let me be well]

Whether it is an extracorporeal sensor, or farsightedness, or ventilation, Bi Fang has shown an extremely detailed understanding of crocodiles, and even his psychology is pinched, which is almost predicted, and such foresight has relieved the audience's nervousness.

Human beings are often afraid of the unknown, but when the opponent's next move can be accurately predicted, the fear greatly subsides, of course, there will still be fear.

The banks of the river are lined with crocodiles, which still look weird and scary.

Especially if all the crocodiles are motionless, if they didn't know that this is in the African savannah, many people may think that it is a fake crocodile.

Those in the rivers silently surfaced beside the boat, staring silently at the raft, and finally sinking silently.

With the movement of the skewers, Bi Fang gradually rowed out more than ten meters.

Just when everyone thought that they would be able to cross safely this time, the water waves next to the raft slowly rippled and were extremely fine.

Bi Fang frowned.

Is it a crocodile?

No, if a crocodile were there, it wouldn't behave like that on the surface of the water.

Such dense ripples look more like the ground is shaking.

Bi Fang raised his head.

In the distance, on the plain, a thin black line appeared in view, and it was still thickening, apparently getting closer, moving quite fast.

(End of chapter)