Silk

Webbing protecting the eggsac under bark.

Silk is manufactured inside their body.
There are 2-7 silk glands depending upon the type of spider.
Liquid silk is hardened by using their back legs to apply tension to it as it comes out of their body.
Each silk gland produces a different type of silk, for example:
- sticky silk for trapping prey;
- dragline silk to protect them if they fall by acting as a safety line like a "bungee cord";
- egg sac silk to protect eggs.