Compound Eye
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<speciesfyi-glossary slug="compound-eye"></speciesfyi-glossary>Definition
An eye consisting of numerous small visual units called ommatidia, providing insects with a wide field of vision.
Detailed Explanation
Compound eyes provide nearly 360° vision and exceptional motion detection — dragonflies detect prey movement at 10 meters and catch it mid-air with over 90% success. Each ommatidium has its own lens and photoreceptors; the brain integrates thousands of signals into a mosaic image. Bees see ultraviolet light invisible to humans, revealing nectar guides on flowers. Compound eyes are poor at resolution but excel at flicker detection critical for fast flight.