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Cake day: July 3rd, 2023

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  • Johandeatopics@lemmy.world[OC] A Dragonfly
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    5 months ago

    It’s called a pseudopupil. It’s the part of the compound eye that’s collinear with your line of sight. As you said, the light is absorbed there and registered by the dragonfly. The surface of the rest of the eye is at an angle and reflects light from the surrounding, which makes it look brighter.