Why do dragonflies have such huge eyes?
Quick Answer
Dragonflies have large compound eyes to detect movement and track prey in almost every direction. Their vision helps them catch flying insects with remarkable accuracy.
The Full Story
Dragonfly eyes are made of thousands of tiny visual units called ommatidia, which provide a wide field of view and excellent motion detection. This is especially useful for aerial hunting, because dragonflies can intercept other insects in flight with extraordinary speed and precision. Their visual system is among the most sophisticated in the insect world, and some species can see ultraviolet patterns that humans cannot. Dragonflies have existed for over 300 million years, making their hunting design one of the oldest successful insect body plans.
Key Facts
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Suggested video title for this topic:
"Dragonflies see almost everything — that is how they hunt on the wing."