Number 1
The Mosquito

A MosquitoMost of you think of this bloodsucking pest as annoying, but not deadly. In that case you would be extremely wrong. In fact, mosquitoes are responsible for more deaths than any other animal. You see, it’s not the mosquito itself that kills people, but the diseases that it transmits. Some diseases distributed by mosquitoes are malaria, yellow  fever, and West Nile Fever. There are also many others, but these are the more commonly known ones. Malaria is actually responsible for two million deaths annually. So, I would advise you to stock up on bug spray!