How spiders weave webs, we all know that spider webs are one of the significant features of spiders, and spiders generally rely on weaving webs to catch their own food, releasing sticky webs to catch some small insects. Except for pet spiders, of course, do you know how spiders weave webs? Let's take a look at the knowledge about spider web weaving.
Spiders weave webs
When weaving the round web, the spider releases a trace and floats with the wind. If the free end of the silk fails to stick to something, the spider pulls the silk back and eats it. If the silk is firmly attached to something (such as a branch), the spider passes over the silk bridge and reinforces it with silk.
The spider clings to a thread in the center of the bridge, and itself falls on one silk and hangs down, to the ground or to another branch, and sticks the thread. The spider returns to the center, and Radogan radiates from the center of the web to the surrounding radiation wires. The spider then crawls back to the center of the web and pulls the temporary spiral filaments from the inside out with dry silk, with a large spacing between the spiral filaments. The spider then crawls to the outermost periphery and places a sticky, tighter flying spiral filament from the center of the outward web. While knotting, eat the non-sticky dry spiral filaments of the previous knot. After the web is all completed, some spiders pull a silk (signal filament) from the center of the web and climb into the leaves in the corner of the web to hide.
The cause of spider webs
The most important feature of the web-knotted spider is its web-knotting behavior. Spiders secrete mucus through the protrusions at the tip of the silk sac, which condenses into very fine silk as soon as it touches the air. The web formed by silk is highly sticky and is the main means of predation for spiders. For insects glued to the internet, the spider will first inject a special liquid date digestion enzyme into the prey. This digestive enzyme can cause insects to unconscious, convulse, and even die, and liquefy the body, after which the spider eats in a sucking manner. Spiders are oviparous, and most male spiders are devoured by female spiders after mating with female spiders, becoming food for female spiders. Wandering spiders do not form webs, but travel around or camouflage in place to prey, such as tall-footed spiders, which are commonly known in Taiwan (worms) (insect foreheads).
Spider web type
Sheet mesh
The most common is the web of a funnel spider, consisting of a tubular shelter from which dense water extends
Flat mesh.
The role of the web is not limited to transmitting the information of the prey's proximity, it can also delay the action of the prey, so that the spider has more time to catch. There are many funnel spiders that tangle many irregular silks above the web, allowing them to better transmit vibrations and intercept insects.
Round net
Roundnets are found in the family Feliaceae and the Arachnidae and some of their relatives. Round spider knots typical of round webs. The round web of the cobwebs is a horizontal circular web with some more silk threads.
Other mesh types
The web of the fan spider is triangular in shape, equivalent to only one fan of the round web. The long female spider is simpler, and the entire web consists of only 1 or a few sticky wires. The demon-faced spider knots a small rectangular web, and instead of passively waiting for insects to hit the net, it uses two pairs of forefoots to pull the net and actively catch insects like a net
Another example is that the meteor spider uses only 1 silk, and the end of the silk has a sticky ball with a volatile substance, which is similar
External hormones, spiders use their forefoots to manipulate this silk like a hydrangea meteor, throwing the sticky ball at the end of the silk towards the prey.
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