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Noctua pronuba

Noctua pronuba

A tool commonly used in ophthalmology finds a new use in entomology: Observing how a moth’s eye adjusts to see in both light and dark environments. Moths such as the winter cutworm (Noctua pronuba, also known as the large yellow underwing), use a light-absorbing pigment that moves position to limit the light within the eye. The process takes approximately 30 minutes and only occurs in live specimens, making it difficult to observe. A new technique using optical coherence tomography, however, opens new doors for studying this process. (Image by Sam R via iNaturalist, CC BY-NC 4.0)

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