Why don spiders stick to their webs?
In the Spiders category of the Yahoo! Directory, we found an excellent Spider Biology FAQ from the Australian Museum that tackles the sticky topic of spider webs. There are a couple of reasons why arachnids manage to steer clear of foreign entanglements. For starters, only the connecting strands of a spider web are adhesive — the elements that connect the primary spokes. The main spokes of the web, which the spider uses to navigate, and the center of the web, where the spider sits in wait for prey, are made of dry silk and are not sticky. This trivia column from Washington State University explains how spiders use their spinnerets to cover dry silk with stick
