What do spitting spiders spit?
Most spiders have glands near their abdomens which produce a silky substance. This is the same silky substance they use to make webs and protect their eggs. Spitting spiders have the same kind of gland, but they produce venomous silk to shoot through large holes in their fangs, enabling them to capture much larger prey. They shoot this at 1/600th of a second over a maximum distance of 2 inches, or 10 times the length of their own body.