This is an often debated issue as to what makes one spider more dangerous than another. Here are some of the main points to consider.
- Severity of toxin in the venom
- The amount of venom actually injected
- The number of deaths by a certain type of spider
- The most aggressive spider
- The spider that has bitten most people
All spiders use a poisonous venom and of the 35000 known species in the world 500 are deadly to humans.