Dragonfly eye closeup
1344×768 · AVIF · CC BY 4.0
Dragonfly compound eyes contain thousands of ommatidia, providing nearly 360-degree vision and movement detection.
About this subject
Dragonfly eyes represent one of the most advanced visual systems in the animal kingdom. Each compound eye consists of up to 30,000 ommatidia, individual light-sensing units that function as tiny independent eyes. This structure grants the dragonfly nearly 360-degree vision, with only a small blind spot behind the head. Such wide coverage is crucial for hunting prey on the wing and avoiding predators.
Frequently Asked Questions
How many ommatidia does a dragonfly eye have?
Each compound eye of a dragonfly can contain up to 30,000 ommatidia, individual light-sensing units.
Why are dragonfly eyes iridescent?
The iridescence is due to structural coloration: microscopic structures in the ommatidia that refract light, producing colors without pigments.
Can dragonflies see in all directions?
Yes, they have nearly 360-degree panoramic vision, with only a small blind spot behind the head.
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