How Do Snakes Move?

There are over two thousand different kinds of snakes. They live on land and water. So snakes vary quite a bit, but all snakes young and old, shed their skin.

When they do this the even the film covering the eyes is cast off. During the process of shedding, the skin is turned inside out. The snake removes the skin by rubbing against rough surfaces. And snakes shed their skin several times a year.

The skin of the snake is scaly and this is very important to them. The scales on the skin enable snake to move gracefully and even quickly. The broad scales on the underside can be moved forward in such a way that the rear edge of each scale pushes against some irregularity in the ground. When the snake is pushed back against these irregularities, then whole snake moves forward.

When the snake wants to move quickly or with great speed, it combines with another method. This consists of swinging the body sideways into loops and by pushing against any stone or plant it touches, gliding along the twisted path formed by the loops.

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This is very interesting question and the facts are rather more amusing. Just because snakes do not have legs now, does not mean they did not have them at sometime in their development. But how and why they came to lose their legs is not known to science. Some experts believe that the ancestors of snakes were certain kinds of burrowing– lizards.

There are many kinds of such lizards today, and all of them have very small legs or no legs at all. In time, the legs disappeared altogether. And despite this, snakes are able to move and get along very well indeed. One of the most helpful things for them in moving are the belly scales that cover the entire under surface of most snakes.

There are four ways in which snakes move. One of them is called "lateral adulatory movement". In this method, the snake forms its body into a number of wavy, S-shaped curves. By pressing backward and outward against rough places on the ground, the snake slips forward on those scales.

A second way snakes move is called "rectilinear movement". In this case, small groups of the belly scales are pulled forward on part of the body, while other scales project backward to keep the snake from slipping back. Then the scales that have been holding the body are pulled forward. The scales that moved first hold the body.

A third way is a "concertina" method, which is used for climbing. The snake wraps its tail and rear part of the body around a tree, stretches out the fore part of its body and hooks it on the tree higher up. Then it releases the rear part and pulls the rest of its body upwards.
"Side winding" is another method by which snakes move. A loop of the fore body is thrown to one side. Then the rear part is shifted to the new position, and another neck loop is thrown out.

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A snake moves by moving their vertebra just like a millipede moves their legs like a chain reaction.

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