204, Retribution 46

Seeing that the giant snake was entangled like smoke, he didn't know what to do, so he had to grab the snake's tail and pull it. Pen, fun, and www.biquge.info

There is an old saying in Juxian County that "pull out the snake in the hole", which means that if the snake's tail is exposed when drilling the hole, it is impossible for you to grab the snake's tail and pull the snake out. When Gangqiang was a child, when his family was building a house at the foot of the wall, a snake got into the crack at the foot of the wall and only showed its tail. Someone from a strong family grabbed the snake's tail and tried to pull the snake out, and finally pulled the snake in two.

Gang Qiang doesn't understand, this snake has no feet, and its belly is smooth, so why can't it be pulled. Later, I checked the relevant information to know how the snake moves:

One is the meandering movement, in which all snakes are able to crawl forward. When crawling, the snake body makes a horizontal wavy bend on the ground, so that the back of the bend exerts force on the rough ground, and the reaction force of the ground pushes the snake body forward, if the snake is placed on a smooth glass plate, then it is difficult to move an inch, and it cannot crawl in this way, of course, there is no need to worry about the snake, because in nature there will be no smooth ground like glass. In other words, if the belly of the snake is twisted on the ground, it is not easy to pull.

The second is the crawler movement, the snake does not have a sternum, its ribs can move freely back and forth, and there are costal skin muscles between the ribs and the abdominal scales. When the costal muscles contract, the ribs move forward, which drives the wide abdominal scales to erect in turn, that is, slightly warped, the upturned abdominal scales are like stepping on the ground, but at this time only the abdominal scales move and the snake body does not move, and then the costal skin muscles relax, the posterior edge of the abdominal scales exert force on the rough ground, and push the snake body forward by reaction, and the effect of this movement mode is to make the snake body crawl forward in a straight line, just like a tank.

The third way is the telescopic movement, the front of the snake body is lifted, stretch forward as much as possible, when it touches the supported object, the back of the snake will follow the retraction forward, and then lift the front of the body to stretch forward to get the support, and the back part will retract forward, so that the snake can continue to crawl forward. Snakes that crawl slowly on the ground, such as lead-colored water snakes, will quickly expand and contract continuously when they are alarmed, speeding up the crawling speed and giving people the feeling of jumping.

In people's impression, snakes seem to crawl very fast, so there is a saying that "centipedes are hundred-legged, and they are not as good as snakes". In fact, most species of snakes can only crawl about 8 miles per hour, which is about the same speed as a human walk. But there are also fast-crawling, slender flower snakes, which can crawl 10~15 kilometers per hour, and the fastest crawling snake is probably a poisonous snake called Mamba, which can crawl 15~24 kilometers per hour, but they can only crawl so fast in a short period of time, and cannot crawl at this speed for a long time. Therefore, even if you encounter a poisonous snake that will chase people, you will have time to avoid it. The reason why people have the impression that snakes run fast is because the crawling speed of snakes is indeed relatively fast in an instant, especially the moment when the snake is frightened and escapes.

In this way, if the snake is strong on rough ground, you can't pull it at all. In addition, after the snake is entangled in something, it also uses this joint force. And you grab the snake's tail, which is thick at the top and thin at the bottom, and it doesn't open its joints, and you can't use force.

The man grabbed the snake's tail and slammed it hard, but the snake didn't tear it away, but slipped his hand and fell.

Although the smoke is small, but the desire to survive is still very strong, at this time after being entangled by the snake, the subconscious instinct will pull the snake to the side of the mouth, a bite.