How do spiders weave a web? How spiders weave webs

There are all kinds of things that happen every day in our daily life, but there are some signs when some things happen, such as when it is about to rain, we will find spiders weaving webs, or we will see spiders weaving webs in the dead of nightSo many people will ask, how do spiders weave a web? Generally, spiders are first large pieces of a frame, and then slowly filled.

We often see the phenomenon of spiders weaving webs in our daily life, spider weaving webs and we humans build houses is the same reason, human beings must first build a large foundation, and the foundation is the most important link in the construction of a house, if the foundation is not good, then it is not safe to repair a high and good floor, and there will be a serious phenomenon of house collapse, after the foundation is built, it will be slowly filled with reinforced concrete and bricks on this basis, we humans build houses mainly for themselves, Home is where we live and live every day.

Spiders and humans are the same, spider weaving web is also to settle down for themselves, spiders are weaving the web life, people who have seen spider weaving web know that spider silk is spit out of their mouths, and spider web is also spider mouth by mouth silk to build, at the beginning of the spider and human beings, first use a few silk as a frame, choose a good location and direction, use silk to fix the frame, and then slowly fill, in fact, the speed of spider weaving web is very fast, Sometimes in less than half an hour, a complete spider web is erected.

Most of the spider webs we look at are round, but the spider webs in the middle seem to be very regular and uniform, and the whole person's perspective will look very beautiful, especially the spider has just woven the web, and people who generally appreciate it feel that this is an art, in fact, spider web weaving is a physiological behavior of the spider itself, which is innate, and you can build a home for yourself when you need it.

The spider first put a few threads in the air, and when one of them was blown away, the spider tightened the thread, and then weaved the web back and forth, and it became a large web.

Creatures in nature have a myriad of skills, and spiders are one of them. When the spider weaves the web, the first thing is to choose a good position, and then climb to a commanding height to start weaving the web, the viscosity of the spider web is very large, but it has no effect on the spider, the spider starts from the center, spirals outward, and after weaving, it waits for the prey to arrive in a hidden position.

Step by step. Weave a small part first and then slowly weave outward, and a net will slowly form.

When spiders build webs, they spit out "juice" from their abdomen, and these liquids, which quickly solidify in the air, become tough and elastic silks.

The heel of the spider secretes a special oily liquid, and it is the lubricating effect of this liquid that allows the spider to come and go freely, as if walking on the ground, and there are several spinners at the end of the spider's abdomen, which can spin different kinds of silk, some of which are not sticky (dry silk), and some are sticky (sticky silk).

In the abdomen of the spider, there are three pairs of protrusions, which is the "spinning device" used to form the web, it communicates with the silk glands in the body, and the silk glands can secrete a kind of mucus called fibrin, when the silk glands secrete mucus, Chi Zheng or mucus will condense into filaments when it encounters air, and the thickness of the filaments is only 1 10 of human hair, and the silk spit out by the spider has a bactericidal effect, so the spider web will not rot in the air for a long time.

The method of spider webbuilding

The spider draws out many filaments long enough to reach the opposite side from the foothold of a clear rocky tree, and these filaments float along with the wind, and then, at all times, it touches the anchorage of the spider's silk with its feet; If any of the threads can't be pulled, then the threads are already wrapped around the trees opposite, and the "heavenly rope" is erected.

Like the pillars of a house, it glued a few more strands back and forth on this supporting line that was bound to be a spider's web, making it into a thick "cable", and then under this thick "cable", a second "cable" was erected in parallel, and the spider crawled around, and the web was erected on these two "cables".

<> "Most spiders weave webs, but there are also spiders that don't, such as tarantulas. These non-webed spiders usually burrow in the ground and then use the silk to line the burrows. They also set traps on the roof of their caves to prey on passing insects.

All spiders, web-weave or not, have some common characteristics: they all have 8 legs; Insects are their favorite food. Currently, there are at least 40,000 species of spiders found by humans.

Web-weaving spiders can weave simple webs or make complex webs. Even if the webs have been weaved, spiders don't stay on the web all day, and they may hang on rooftops, in a corner of a window frame, or hide under large rocks.

Spider webs are used to prey on insects, and it can take a spider several hours to compile a good web. For example, round spiders use many different kinds of silk to weave their webs. It first frames the web with dried silk, which is the scaffolding it works with.

Then it is covered with sticky threads to stick to the flying insects that come by mistake.

All the spider silk is secreted from the spider's abdomen. Different glands in the abdominal cavity of spiders secrete different species of hunger-destroying spider silk. Spiders can also mix several types of spider silk together to create a type of spider silk with a special function.

At first, the spider spins its silk in the wind, and if it happens to be on a nearby object such as a tree branch, the spider can move along the silk and apply slime to it.

After weaving the general outline, the spider will continue to spin silk to connect the two ends of the web. Then it runs to the ** of the web and spits out another spider silk to hold the other side of the web in place. From the web, the spider continues to spit out more dry silk, which radiates out of the web, like the spokes on a bicycle wheel.

Then, it starts to circle around the spokes, laying out a number of network cables in a circular direction. Finally, the spider attaches a sticky thread to the top of the dry, spiral-shaped web thread. Then the dried silk is removed (eaten), and a trap for the food is laid.

Some of the patterns in the webs are particularly complex, and researchers have found that some of them are part of the trap. To us, the patterns don't look special, but that's probably because we can't see them in UV light.

Ultraviolet rays come from the sun, and this rays can harm**. Its frequency is so high that it is beyond the range of vision of the human eye, so it is invisible light for us humans. But many insects can see ultraviolet light, especially those that feed on nectar and pollen.

Spiders take advantage of this by weaving some special webs to attract these insects.

First, the spider weaves a web out of silk that doesn't reflect much UV light, and then weaves a special pattern out of another type of silk that strongly reflects ultraviolet light. What does this do?

Studies have shown that these patterns closely resemble the shape of many flowers when exposed to ultraviolet light. So, when hungry insects mistake cobwebs for food, they rush over. The result, of course, is that they fall into an elaborate trap and become a dinner for the equally hungry Ascending Spiders.

Start by pulling several warp threads, then run to the other end and repeat the same motion. The warp threads are pulled evenly at both ends, so that the net threads are tighter and more evenly distributed.

When the warp threads are all knitted, the spider returns to the axis to rest, and then works on the weft threads along the wheel shaft pulled by the warp threads.

The spider takes the axis as the midpoint, and uses filaments that are barely visible to the naked eye to slowly weave horizontal threads around the warp. Each line is carefully spaced. This filament-woven area I call the "rest area".

After the rest area was built, the spiders began to pull the thick silk, which was visible. It can adjust the thickness of the silk thread arbitrarily, and use the spiral weaving method to pull the distance between the thick weft threads.

Spider silk comes out of the spinning apparatus and is usually located in the back of the abdomen. Linda Ryle, an assistant professor at Cornell University's College of Entomology in New York, said: "The silk is in the abdomen as a liquid and comes out as a solid filament, and researchers have been studying how this happens.

Spider silk is much harder and more flexible than steel of the same width, and it can stretch up to 200 times its length. Each type of spider has its own type of web, which is innate. But just as each painting is unique, so the individual webs are built by each spider according to the specific space, says Robert Busut, a professor of biology at Vassar College in New York

Spiders modify the design of their webs according to the wind and surrounding vegetation. ”

The best known symmetrical webs are those woven by the globe spiders, and there are about 5,000 species of spiders that weave the globe webs. The round ball net consists of radial circles with a spiral protruding in the middle to trap food.

Most spiders catch their prey by weaving webs. So how exactly do spiders weave their webs? The spider's abdomen has a raised organ called a spinl.

It can secrete a type of mucus. This slime condenses when it encounters air. This is the main material of spider webs.