People Who Survived The Impossible
Venom is a form of toxin secreted by an animal for the purpose of causing harm to another. Venom is injected into victims by means of a bite, sting or other sharp body feature, which differentiates it from poison .
The potency of different venoms varies; lethal venoms are often characterised by the median lethal dose , expressed in terms of mass fraction , that will kill 50% of the target of a specified type . (source : wikipedia