9. One human can feed a million mosquitos.
A human’s body has enough blood to feed on 1.2 — 1.8 mosquitos. Everything depends on the height and weight of the victim as well as the level of the insects’ hunger. One mosquito drinks about 0.003 ml of blood within one bite, therefore, a whole army of tiny bloodsuckers would be needed in order to suck out all the blood of a human. And, of course, this event is unlikely to happen.