<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (June 2007) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (June 2007) (Learn how and when to remove this template message) </Td> </Tr> <P> A spider web, spiderweb, spider's web, or cobweb (from the archaic word coppe, meaning "spider") is a device created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey . </P> <P> Spider webs have existed for at least 100 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 . "Spider web" is typically used to refer to a web that is apparently still in use (i.e. clean), whereas "cobweb" refers to abandoned (i.e. dusty) webs . However, "cobweb" is used to describe the tangled three - dimensional web of some spiders of the Theridiidae family . While this large family is also known as the tangle - web spiders, cobweb spiders and comb - footed spiders, they actually have a huge range of web architectures . </P>

What is the difference between a cobweb and a spider's web
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