The beautifully colored wings of African swallowtail butterflies manipulate light using engineering tricks similar to those found in digital displays. Their wings have many similarities to LEDs.

科学家发现，非洲燕尾蝶漂亮翅膀处理光线的原理竟然与数码显示器的原理类似。其翅膀和二级管之间有很多相似的地方。