Often after a rain on yet not dried out asphalt, on a crude bed in a kitchen garden or in a garden it is possible to see the creeping earthworm. Why it, actually, rain, a question does not arise, and here is how the worm moves, will intelligibly explain not everyone.
Instruction
1. It is a little biology the Way by means of which the worm moves from one place to another - crawling. To move in the soil, as well as on any other surface, the earthworm can thanks to the annulate building and well developed strong muscles consisting of longitudinal and ring muscles. At worms of a muscle together with skin represent a continuous skin and muscular bag. Longitudinal muscles help to become a body of a worm thicker, reduction of ring muscles does it long and thin. So, alternating reductions of both types of muscles, the worm carries out process of the movement.
2. Interestingly, but the fact you sometime noticed that on the internal belly party of a smooth little body of an earthworm there are special bristles? With their help the invertebrate clings to various roughnesses then muscles are reduced and the body is tightened forward. Also they help to rise and fall on already done earth courses. If to put a worm on standard sheet as soon as it begins the movement, it is possible to hear rustling of bristles about paper, and it is possible to feel them, having run a wet finger from below over a paunch of an animal.
3. Really he eats zemlyupishchy for worms the rotting-through fallen leaves, a grass and other vegetable remains which got to the earth serve. Moving forward, the worm swallows small portions of the earth, processes it, and then throws out unnecessary waste from an organism, thereby fertilizing the soil, loosening it and enriching with oxygen. Here from where on a surface fancy earth "strings" and lumps undertake. In softer layers the worm moves apart the earth the pointed end of a body, and further squeezes between its particles forward.
4. To it so comfortably with the Nature it is so arranged that the worm all surface of the body breathes, but for this purpose his skin constantly has to be damp that provides availability of slime. The behavior of a worm after a rain can be explained with the fact that in too damp earth oxygen for breath therefore it is necessary to creep out on a surface does not suffice. Most often it is possible to meet it in damp weather or in the evening day, sunshine are pernicious for a worm as skin dries up it.
5. Such small and sometimes not noticeable for people around, earthworms, it appears, not only are madly interesting, but also are very useful. Each of them in a year can "shovel" up to 16 tons of the earth, having enriched it with nutritious elements.