Despite the fact that today we are surrounded by millions of species of all kinds of insects, both large and very discreet eye, many people do not realize how these insects look like in reality, that is enlarged.For example, how many paws spider, children do not tell either in kindergarten or at school, and in the future people just do not think about it.Therefore, the structure of the body of insects remains a mystery for many people, and when you have to face some nuances of this kind often starts screeching halt.Well, try to understand right now that looks like a spider, and what are the characteristics of its many legs.
brief anatomical theory
answer to the question of how much the clutches of a spider can be only one: they had eight.This amount does not depend on the size of the insect on its type or location.It should be noted that often, looking at the image of a spider, many account for as much as ten feet, but these calculations are wrong.Just palps confused people who are located in the bow of the insect with an extra pair of legs.
On the very same fact, these two limbs spider uses to rake in food, look via receptors that are located on the safest way for the movement, as well as to control the balance.But never like insects do not apply pedipalps as support for the movement of the limbs.
Why are so many spider legs?
If the information about how much the clutches of a spider, is more or less familiar to many, it is the action that produces this insect with them, is not known to everyone.For starters take a look at what is present all four pairs of legs, and then based on that, consider what it gives the possibility of insects.
Spiders - arthropods creation, hence all their paws are certain kinds of tentacles.They are all kinds of receptors smell, touch, and many others.Paws spider at the same time perform the function of movement, recognition of danger, find food and weave the web.Parents arthropods with their tentacles hold a cocoon, and if necessary, transfer it to another place.That is why spiders are the holders of such a large number of legs that also serve as his arms, nose, eyes and even the so-called "sixth sense."
spider without legs - the same high-grade spider
Not so long ago in France was an experiment that proved that arthropods, who have lost one or two of his limbs do not notice this loss.To do this in one container were planted insect full, which contains all the tabs.The others were to meet them, who for some reason have lost one or both legs.As a result, weaving webs, obtaining food and other life cycles of arthropods in both containers, the same way.
fact that the rear pair of legs spider given as to reserve.They use them if lost front tentacles.By the way, this phenomenon occurs in nature very often, so you can easily find at his dacha spider, which will be the owner of only seven or even six limbs.
The longer the legs, the more terrible spider.Is it so?
Most of us met insects such as spiders with long legs which have a gray color and is moved very, very quickly.Someone they eerily frightening, for someone to appear dust particles which can easily blow away from the place.However, few know that these arthropods are not spiders.
In science they are called "harvestmen" and popularly referred to simply as "lozhnopaukami."Recognize harvestmen and distinguish it from the spider is very simple.The former have dissected the abdomen, which is almost completely merges with the cephalothorax.Spiders also have a holistic tummy, which is connected with the head of a thin membrane.
Conclusion
Knowing how many paws spider, he uses them and what are the characteristics of their work, you can with less fear has to look at these insects, knowing that they are not as terrible as it seems.And that actually harm can cause only the arthropods that live in the southern regions and are in their pedipalps poison.
