Most people do not like or even afraid of spiders. They do not care about the web - an effective trap, with which spiders catch their victims. Meanwhile, the web is one of the most advanced creatures of nature, which is characterized by a number of amazing properties.
Initially, the cob is stored in liquid form
Inside the spider, the web is stored in a liquid form and is a high glycine, serine and alanine protein. When the liquid is washed through a spinning tube, it instantly freezes and turns into a cobweb.
not the whole web sticky
The radial threads of the web for which the spider usually moves inside their traps does not contain adhesive substances. Cold threads are thinner and lungs - arranged rings and covered with the smallest droplets of the adhesive. It is for them that the inattentive victims of the spider are sticking.
But even if the spider for some reason is forced to go with a radial thread on the ring, then it will not stick anyway: the whole thing is in the hairs that cover the legs of the articraft. When the spider comes a paw on the thread, the hairs collect all the sticky drops. After the spider lifts his leg, drops from the hair again to the thread of the web.
on the strength of the web affect light, temperature and humidity
The adhesive substance that fastes the threads of the web, changes its stickiness depending on weather conditions. It has been established that the found of the web in a dry and hot place reduces its strength. The straight sun rays will further weaken the junction of the threads between themselves and make the web even less durable.
Spiders use web not only for hiding production
A web is used by spiders not only for the manufacture of excellent traps. For example, some species use a web for marriage games - females leave a long thread, going through which passing by the male can get to the desired goal.
Often spiders tear their mink's web. Others use threads as ropes for which you can go down. If the spider lives at an altitude, under his refuge, he can stretch a few safety threads so that when falling the opportunity to cling to them.
The original method of using the web found some representatives of the family of spiders-circuits living in the tropical forests of Amazonia. They glow the thread of several twigs in such a way as to make them similar to the insect. Then, moving at a certain distance, the spider pulls for the thread, forcing the mooring to move, imitating the movement of the insect. This method helps spiders to divert predators and, while the enemy explores the uluage, the sealership appears the opportunity to escape.
Spiders of some species leave on a web electrical charge
A real surprise was the news that spiders of the form of uloborus plumipes during a weaving with their hyperfine cobweb additionally rubbing her legs, which gives a trap electrical charge. When an insect, which has an electrostatic charge, turns out next to the web, is instantly attracted to it at a speed of about 2 m / s.
Some webs affect their length
The web of the females of Pauka Darwan can scare even the most bold man: her tailing area can reach 28, 000 cm², and the length of some thread numbers up to 28 meters!
At the same time, fastening threads of similar paouth are characterized by high strength: for example, they are 10 times more stronger than Kevlar - material that is used as a reinforcing component in body armor
Some spiders can weave web even under water
We are talking about Serebryanka Spider, which is able to be under water for a long time. When immersing in water between the hairs, his abdomen is delayed air bubbles that spider uses for breathing under water.
These bubbles are cast in water with silver, thanks to which the spider and got its name. The air supply of the spider is enough for a long time: he has time to reject the underwater web, sometimes goes into the surface.