Shrimp Eyes Match Water Color for Perfect Camouflage
Transparent shrimp larvae have evolved glass-covered eyes made of microscopic isoxanthopterin spheres that match surrounding water colors. The spheres, each billionths of a meter wide, form a precise array with gaps that allow vision while eliminating telling eyeshine. This natural technology shifts from deep blue to yellow-green based on environmental needs, with changes occurring within hours of exposure to different light conditions. The discovery could revolutionize light manipulation in solar panels and remote sensing equipment. It could also help create new environmentally safe color-changing materials.