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Macro photographs of insect eyes by Yudy Sauw
Tittle: ~Robert Anton Wilson

Wiki on Ommatidia

Pro tip: Many insect-pollinated flowers contain ultraviolet pigments that only their pollinating insects (and perhaps birds) can see. Many flowers are more strikingly coloured in the UV than in the visible spectrum. Furthermore, markings, visible only in the UV, act as taxi markers to guide the landed insects to the pollen and nectar food rewards. via