Where do spiders keep their webs?

Spider's web - does not have a ready made web. She spins one. If you are lucky you may be able to watch the female spider doing this. The material that makes the thread for the spider's web is a liquid which she produces from tiny spinning tubes. These spinning tubes are to be found on small lumps on her body, known as spinnerets. As soon as the liquid comes into the air it hardens and changes into thread. When the spider sets out to spin a web she first uses a tough thread to build an outer frame in which she fits spokes as in a wheel. Next she starts from the hub to weave a spiral crossing the spokes about five times just to keep them in position. Then she begins again at the outside rim to spin a complete spiral with finer silk cutting away the "scaffolding" as she nears the center. Finally she constructs new support-lines for the finished web. When the spiders move they spin out lines behind them. These are known as the "draglines", and spiders use them as anchors. They do this by pressing their spinnerets against small objects like pebbles or plants. These are the most important threads of all. Spider use their webs for trapping flies and other insects to eat. So, besides being beautiful to look at spider's webs are vital to them as food providers.

No comments:

Post a Comment