Fly Facts Flies have been pursuing mankind throughout all of recorded history, and probably from the time man emerged from his caves and began to walk erect. They are depicted in the oldest writings from the ancient world. Flies are referenced in the Bible as one of the plagues Moses brought down upon the house of Pharaoh. They have even been taken aboard the space shuttle into outer space.
Flies are the only insects that have only two.
All other insects have four wings. The flies reputation for uncleanliness is also well deserved. Many of man's primary diseases are transmitted by flies, including the deadly Yellow Fever . Entomologists Dr. Yao and Dr. Yuan of China studied more than 378,046 common house flies and estimated that each carried no less than 1,941,000 bacteria on their bodies. Indeed Flies are probably responsible for more deaths among humans then any perceived atrocities we may have misguidedly thrust upon them.