Humans see 60 flashes of light per second while flies see around 250 flashes per second. The rate that this happens determines how your vision works and different species have different processing speeds known as flicker fusion rate.įlies have the upper hand in battles because they process image extremely quickly.

The brain and eyes work together to convert light into these images. Though life is viewed as continuous motion, it’s actually multiple images being grouped together. However, their brain plays an even larger role. Their wide field of vision allows them to see an approaching threat from all sides. The eyes of a fly play a big role in their ability to avoid being swatted or sprayed.

This allows them to have a wide field of vision. Their abdomen has a gray, checkered pattern and they are covered in golden, short hair.įlies have compound eyes with up to 6,000 lenses on each. These flies are gray with black stripes and their body is covered in short hair. Two flies that are notorious for ending up in your home are the house and cluster flies. They have two wings and typically land often. Flies are smaller insects with an oval body shape. There are about 16,000 species of flies in North America. Fly 101īefore diving into how flies easily avoid us, it’s important to know a little bit about them. We’ve gathered information about why flies are so hard to swat and spray to help you the next time you face off with one of them. Unfortunately, it always seems like the fly wins the game and you’re not sure why. When a pesky fly ends up in your home, your first thought is probably to use a fly swatter. The fly buzzes by you without a care in the world. You put all your energy into the swing…and you miss. You step up to the plate with the swatter in your hand.

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