Patterns Of Spider Web With Dew Drops Shining On Its Silken Threads : (pix Sanjiv Shukla) Royalty-Free Stock Photo

Spider web, spiderweb, spider's web, or cobweb is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey. It has existed for at least 100 million years. Many spiders build webs specifically to trap and catch insects. However, not all spiders catch their prey in webs, 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.