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Spider webs are nets made up of some types of spider silk to capture insects, small vertebrates, etc., or to nest inhabited. Spiders can sense the vibrations that occur when prey collides or gets trapped on spider webs; after completing their nets, spiders wait for prey to fall into the trap on or near the net. Some of the spider webs are sticky and some are not, such as radial spider webs, and the vertical lines have no sticky lines. Since the action of the spider itself is also affected by its own mucus, when it moves on the net, it will avoid stepping on the silk with mucus.
Some spider silks are stronger than the same weight of steel wire and have higher elasticity. It is one of the research topics of materials science, and has potential application value in the industry, which can be used to manufacture bulletproof vests or artificial tendons. In order to make artificial spider silk, some researchers use genetically modified mammals to produce the desired protein.