This article is about the class of biotoxins. For other uses, see Venom .
Venom is any of a variety of toxins used by certain types of animals, for the purpose of defense and hunting. Generally, venom is injected while poisons are absorbed by ingestion or through the skin. sting, with droplet of venom]]The animals most widely known to use venom are snakes, some species of which inject venom into their prey through hollow fang; spiders and centipedes, which also inject venom through fangs; scorpions and stinging insects, which inject venom with a sting (which (in insects) is a modified egg-laying device - the ovipositor). There are also many caterpillars that have defensive venom glands associated with specialized bristles on the body, known as urticating hairs, some of which can be lethal to humans (e.g., the Lonomia moth). Venom is also found in other reptiles besides snakes such as the gila monster, and mexican beaded lizard. Other insects, such as true bug [1], also produce veno
Source:
http://en.wikipedia.org/wiki/Venom