As morbid as this may sound, did you know that it would take 1.2-million mosquitoes to drain the average human of all their blood? A mosquito has a variety of ways of finding their prey, including chemical, visual, and heat sensors. Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites. Continue reading for more random and interesting facts about the human body.