Spider web

A spider web, spiderweb, spider's web or cobweb (from the obsolete word coppe, meaning "spider", [1] 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 EnglandBrasier et al. 2009.

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.