Live Wilderness Adventure - Chapter 883 pinch

Only those who really entered the river discovered that the crocodiles were far more than those who climbed to the bank to bask in the sun.

A piece of "dead wood" floated up to the surface of the water without warning, as if it had been buried under the river silt before, until the raft on the river stirred the water and dispersed the sand, just in time to let these large pieces float.

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

They are not those little guys called Nile crocodiles in the Egyptian desert, but actually West African crocodiles, with an average body length of less than 1.7 meters, but the horrors with an average body length of 3.5 meters for adult males and over 4 meters for adults. giant!

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

The body length of the West African Nile crocodile is 1.5 meters, and the weight is basically no more than 30 kilograms, while the weight of the 3.5-meter Nile crocodile can reach a terrifying 300 kilograms. Compared with doubling the body length, the weight directly doubles ten times!

If two crazy crocodiles were to attack forcefully, the weight alone might overturn the entire raft and fall into the water, but Bi Fang couldn't help it.

The viewers who realized this were all terrified. For a while, the number of viewers and bullet screens in the live broadcast room surged at the same time.

[A lot, is this too much? The feeling on the surface of the water has double digits]

[How many crocodiles are there? The African river is too scary.]

【What the hell, they won't really come to attack, right?】

【It’s all coming out all at once, the feeling is too sharp】

Compared to the flustered audience, Bi Fang seemed to be in good spirits and not worried. He had experienced too many similar scenes.

Facing the battlefield for the first time, recruits will fight in two directions, but veterans who have fought a hundred battles will never be able to.

"Looking at the appearance, the Nile crocodile is full of scales. Many people subconsciously think that their touch is weak, just like the skin covered with calluses is often slower than normal skin. In fact, the opposite is true. The body surface of the Nile crocodile There are many sensory organs that are more sensitive than normal human skin."

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

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

Are you kidding me?

"The crocodile's scales are just a manifestation. We have to see the essence through the performance. In fact, people discovered more than 100 years ago that there are many small black spots protruding from the head, jaw, mouth and between the teeth of the crocodile. These small black spots, Cough, the little black spots are not the dirt left by long-term survival in the wild, but are born with it.”

"In the developing caiman and its embryos, before the skin began to split and form scales, the small black spots on its head had already appeared. The Nile crocodile was more exaggerated, and additionally developed small black spots all over the body. At that time People see it as a unique organ."

"However, the functions of these organs have been poorly understood before, and only now have a general understanding. In fact, we can roughly understand their functions from the names."

"Those raised black dots, are unique sensors, which we call dome pressure receptors, or cortical sensory organs, which are sensory organs."

"However, the crocodile's outer skin sensory organs are completely different from other vertebrate sensory organs. It combines touch, heat and cold and chemical stimulus detection together, and has evolved into a kind of advanced armored sensitive skin, which is even more sensitive than our human skin. many."

"This means that crocodiles can detect surface pressure waves, respond 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 body temperature by alternately basking in the sun and entering cold water, and chemical perception helps them find the most suitable habitat."

This is also the reason why Bi Fang insisted on using a prop instead of a rowing oar. The water waves caused by the rowing oar are much larger than that of the prop, which is more likely to attract the crocodile's attention.

Regardless of whether the crocodile dares to attack or not, it can attract less attention or attract less attention.

[This is too exaggerated]

[Is it so awesome? 】

[No wonder all the nearby crocodiles reacted when Lao Fang’s raft entered the water]

[The miracle of biology, natural evolution is really amazing]

Bi Fang nodded and said: "It's really amazing. The sensory organs of other vertebrates are incomparable. For example, in our skin is a distributed sensing system, and the crocodile concentrates this distributed sensing system. , into a distributed multisensory micro-organ."

"More specific related papers are published in the Yangguo magazine "Evolution and Development". If you are interested, you can go and have a look."

The audience is now somewhat used to the practice of throwing papers at a disagreement.

This also further proves Bi Fang's professionalism, at least other wilderness survival anchors have no such ability at all.

Not everyone has a memory palace.

"But we don't need to worry for the time being. If the crocodiles really want to attack, you won't be able to see them surface. If they can surface, it means that they don't have any desire to attack yet."

Crocodiles usually float on the water with only their eyes, mouth, and nose exposed.

It looks like you are basking in the sun, but it is actually a standard action for breathing.

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

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

Crocodiles are out-and-out farsighted, and now they can't see clearly at a distance of tens of meters. On the contrary, due to the different refractive index of light in water and air, crocodiles can rely on body perception to observe underwater Be more clear.

"Come out to take a breath now, probably because I was alarmed. After observing it, I just came up to take a breath."

"Besides, we're on a raft, and the whole target is too big for the crocodiles to attack easily."

After analyzing calmly, Bi Fang slowly pulled out the skewer in his hand from the mud.

For crocodiles, the entire 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 adult Nile crocodiles, but the Nile crocodiles are less than two meters long. Width!

The area of ​​the entire raft is close to eight square meters, plus Bi Fang standing upright on it, the overall height is more than two meters, and the volume is close to 16 cubic meters. From the perspective of the crocodile's senses, this is a monster among monsters, or a monster. A monster that can live in water.

Maybe some kind of hippopotamus king?

Even ordinary hippos dare not attack, let alone the king of hippos.

This is probably what the crocodiles think.

[It's too 6, Fang Shen is really pinching with his hands, the crocodile's mentality is pinched to death]

【This is probably the Great God】

[The crocodile's underwear has been touched]

[Bottoms? Let me be healthy]

Whether it's external sensors, farsightedness, or ventilation, Bi Fang has shown an extremely detailed understanding of crocodiles, even mentally pinched to death, UU Reading www.uukanshu.com is almost a prediction, such a foresight , so that the audience's nervous mood was relieved.

Humans are often afraid of the unknown, but when the opponent's next move can be accurately predicted, the sense of fear will be greatly subsided. Of course, there will still be fear.

A row of crocodiles along the river bank still looks scary.

In particular, all crocodiles are motionless. If they didn't know that this is in the African savannah, many people might think it's a fake crocodile.

Those in the river silently surfaced beside the boat, stared at the raft silently, and finally sank silently.

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

Just when everyone thought they could get through this time safely, the water waves beside the raft slowly rippled, extremely fine.

Bi Fang frowned.

Is it a crocodile?

No, if the crocodile appeared, the water surface would not behave like this at all.

Such dense ripples look more like the ground has shaken.

Bi Fang raised his head.

On the plain in the distance, a thin dark line appeared in the field of vision, and it was getting thicker and thicker. It was obviously getting closer and moving at a very fast speed.

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