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How often do snakes shed their skin? Shedding problems in snakes Shedding problems in snakes

Everything about everything. Volume 5 Likum Arkady

How often do snakes shed their skin?

There are more than two thousand different snakes. They live on land, in water, in trees and are very different from each other. But all snakes, young and old, shed their skin. During this process, even the film covering the eyes is shed, and the skin is turned inside out. The snake rubs against rough surfaces and thus removes its skin. This happens several times a year. The skin of a snake is scaly, which is very important for it. The snake has no legs, although some species, such as boas and pythons, retain underdeveloped hind legs. They are not visible at all, only the claws in the lower part of the body stick out. It is the scales on the skin that give the snake the ability to move gracefully and quickly along the ground. Wide scales on the lower surface of the body are pushed with sharp edges from irregularities on the surface of the earth, and the entire snake moves forward from these pushes.

If a snake needs to crawl quickly, it also resorts to another technique. It consists in the fact that the snake bends in loops, pushes off from stones and plants with which it comes into contact, and slides along a winding path formed by the loops of its body. The snake's closest relatives are other cold-blooded reptiles: lizards, crocodiles and turtles.

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How a snake changes its skin

How a snake changes its skin

People who change their appearance are sometimes compared to a snake changing its skin. In reality, snakes, like other reptiles, do not change their skin, but periodically molt - they shed the upper, dead and worn-out stratum corneum of the skin. Other terrestrial vertebrates – amphibians, birds, mammals – also molt. But in amphibians, only the thinnest layer of skin is shed, and molting is almost unnoticeable from the outside, while in birds and mammals, each feather or each hair falls out individually. Only in reptiles does molting have a comprehensive and, one might say, spectacular character.

When lizards and snakes moult, peeling of the upper horny layers occurs simultaneously throughout the body. This process continues for several days. At first, the animal’s skin becomes cloudy, it becomes inactive and loses its appetite. Then the dead and dried surface layer breaks and falls off the animal’s body. Snakes are especially effective at freeing themselves from shed layers of skin. First, the snake rubs its muzzle against the ground and surrounding objects with its head. After the dead layer bursts on its lips, it tries to catch it on a branch or stone, and when this succeeds, it begins to slowly crawl out of it. The snake crawls forward, and the shed layer of skin, turning inside out, is pulled behind. Under normal conditions, it comes off entirely. Such covers, shed when snakes molt, are called crawls and are not difficult to detect in places where snakes are found. The crawl accurately reproduces the entire structure of the scaly cover, and from it you can not only determine the species of the snake, but even, like fingerprints, find out which particular individual has molted here. In lizards, due to a more complex body structure, the shed stratum corneum cannot come off entirely and breaks off in pieces. In nature, sometimes you can notice an individual running clumsily and seemingly dressed in some kind of rags. This is a lizard in the midst of the molting process. Dangling flaps of exfoliated skin hamper her movements, and she tries in every possible way to speed up the process of liberation: she rips off the “gloves” of dead epidermis from her paws with her jaws, scrapes rags from her head and back with her paws, rubs on the ground, tearing them off her stomach and sides.

In crocodiles and turtles protected by shells, molting is less noticeable - only the upper layers of the horny scutes peel off. Turtles molt the areas of their body that are free from their shell—the head, neck, and paws. Here molting occurs in the same way as in lizards. Do not assume that the empty shells of turtles that are sometimes found in nature are shed during molting. Unfortunately, no, these are the skeletons of dead animals.

Molting of lizards and snakes is an important phenomenon in their lives. Growth and metabolism are associated with it (during molting, unnecessary substances accumulated in it are also removed from the body). With the shed layers of skin, reptiles also remove ticks that have attached themselves to them (and exotic sea snakes in the same way get rid of annoying hosts - mollusks that grow to their bodies). In many species, molting precedes the mating season. Fast-growing juvenile reptiles shed more often, adult animals - 1-2 times a year, in certain seasons. More frequent and untimely molting indicates poor health of the animal.

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Secret No. 112 Tempering the skin of the neck Don’t forget that the skin of the neck sometimes ages earlier than the skin of the face. Therefore, you need to look after it no less carefully than your face. – Wash your neck with cold water more often – this increases blood circulation. It is useful to water the back of the neck in the morning and evening before bed.

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We treat the scalp Diseases of the scalp include dandruff, allergic contact dermatitis, seborrheic eczema, and baldness. For diseases such as neurodermatitis, eczema, trophic ulcers, aeroionotherapy is prescribed, which consists of using

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Most reptiles exchange their old skin for new ones from time to time. This renewal process is called molting and occurs differently in all reptiles. Snakes were no exception, shedding not only all their skin, but even the film covering their eyes.

Why does a snake change its skin?

For a long time it was believed that another reason for the change of skin is that the snake’s body grows, but its skin does not, so it has to be shed and acquired a new, larger one. Currently, this fact raises doubts among scientists.

How does a snake change its skin?

So how does a snake shed its old skin and get a new one? The snake grows new skin underneath the old one, and when the growth process is complete, the old skin begins to stretch and separate from the new one. First, the old skin bursts around the mouth, and the snake begins to rub its head against various hard surfaces and wriggle, trying to pull it off. When the snake manages to free its head, it simply crawls out of its old skin, turning it inside out. The discarded old skin looks like an almost complete case, which, by the way, after discarding, turns out to be several cm longer than the owner’s body.

How does a snake prepare for molting?

How does a snake change its skin? She prepares for this process for a very long time - she becomes restless, stops eating, and her behavior changes. Some snakes become lethargic and lazy, while others, on the contrary, become nervous and very aggressive. Poisonous snakes are especially dangerous during the molting period.

The fact that the snake is preparing to shed is noticeable externally: its old skin fades and dulls, the pattern on it is no longer so clear, and its eyes acquire a dull blue tint. This time is called the “blue eye period” and it lasts on average 7 days.

How often does a snake change its skin?

It is through this process of constant skin renewal that the snake has become a symbol of medicine and healing.