How Do Flies See The World?

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Flies may be small, but their eyes are very complex and allow them to see the world in a far superior light than humans. What may seem like two eyes framing their buggy little faces are actually an elaborate series of lenses that would give highly advanced surveillance systems a run for their money. Let’s take a closer peek at how these pesky insects see the world.

Ever wonder why it’s so difficult to swat a fly? A fly’s eyes can be attributed to its good fortune. Flies have compound eyes made up of thousands of visual receptors. Each lens operates independently to form a broad, mosaic-style image — allowing flies to recognize even the slightest movements in a wide range of field.

While flies have an almost 360-degree field of vision, the acuity of how they see the world isn’t as sharp. Because flies’ eyes are immobile and they have no pupils to control how much light enters their eyes, they’re unable to focus at distances and can only see a few yards. Fly vision can be best compared to a mosaic where tiny lenses, called ommatidia, perceive individual images for the fly’s brain to extrapolate into one cohesive image.

Furthermore, flies have a limited field of colors they can see. Because flies only have two kinds of color receptors, they often have difficulty distinguishing between colors like white and yellow and cannot see the color red altogether.

Sources:
“What Do Flies See Out Of Their Compound Eye?” Mom.me

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Robert Luckens

Robert is the founder of Rockypest Pty Ltd, formed at the end of 2013. Still trading as Rockingham Pest Control and Luckens Pest Control. Robert has been in the Pest Control Industry since 1988, prior to this he was in the fumigation industry for 3 years so with over 30 years experience you can be rest assured that you will receive the best possible service at all times.

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