A spider web, spiderweb, spider's web or cobweb (from the obsolete word coppe, meaning "spider", sometimes with the connotation of being a dusty, abandoned web) is a device built by a spider out of proteinaceous spider silk extruded from its spinnerets.
Spider webs have existed for at least 140 million years, as witnessed in a rare find of Early Cretaceous amber from Sussex, southern England.
Insects can get trapped in spider webs, providing nutr...
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A spider web, spiderweb, spider's web or cobweb (from the obsolete word coppe, meaning "spider", sometimes with the connotation of being a dusty, abandoned web) is a device built by a spider out of proteinaceous spider silk extruded from its spinnerets.
Spider webs have existed for at least 140 million years, as witnessed in a rare find of Early Cretaceous amber from Sussex, southern England.
Insects can get trapped in spider webs, providing nutrition to the spider; however, not all spiders build webs to catch prey, and some do not build webs at all. The main difference between spider webs and cobwebs, is that spider webs are still in use webs, while cobwebs are webs that have been abandoned.
Spiders initially started producing silk for reasons other than web-making. When spiders moved from the water to the land in the Early Devonian period, they started making silk to protect their bodies and their eggs. Spiders gradually started using silk for hunting purposes, first as guide lines...
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