The average house fly lives on average 21 days. A flies wings beat 200 times per second. Flies don't grow. They are born full size. Flies have 4000 lenses in each eye.
Flies jump up and backwards when taking off.
Flies smell with their antennae 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.