Why Do Spiders Not Stick to Their Webs?
All of us know what a spider web is. It is a sticky net used to trap prey. When insects fly into the web, they become stuck in the viscid thread, and spiders eat them. Spider webs are thin but very strong. Silk production When spiders moved from the water to the land in the Early Devonian period, they started silk production to protect their bodies and eggs. [13][14] Spiders gradually started using silk for hunting purposes, first as guide lines and signal lines, then as ground or bush webs, and eventually as the aerial webs that are familiar today. [15] Spiders produce silk from their spinneret glands at the tip of their abdomen. Each gland produces a thread for a different purpose. Example: a trailed safety line, sticky silk for trapping prey, or fine silk for wrapping it. Spiders use different gland types to produce different silks, and some spiders can produce up to eight different silks during their lifetime. [16] Most spiders have three pairs of spinnerets, each having its func