Blotchy eyes with hundreds of minute lenses guide the butterfly to nectar-bearing flowers whose colors give off ultraviolet rays visible to the insect but not to humans.

• 蛱蝶带有斑点的眼睛由成许许多多微小晶状体构成。这双眼睛使它看到人类看不到的由饱含花蜜的花朵发出的紫外线，从而引导蛱蝶找到这些花朵。