The trade-off between visual acuity and night vision. Unfortunately it doesn't work in reverse; my poor visual acuity does not give me better night vision, more's the pity.
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academic.oup.com
Resolving the Trade-off Between Visual Sensitivity and Spatial Acuity—Lessons from Hawkmoths
Synopsis. The visual systems of many animals, particularly those active during the day, are optimized for high spatial acuity. However, at night, when phot