Growing Up With Ten Thousand Whys: Animals and Plants Volume (Latest Edition)

Author: Li Jie / Country: Mainland China
Publisher:
Publish Date: 2005-11-01
Features:
Why are butterflies' wings so beautiful?
Butterflies are particularly proud among insects and often attract admiring glances because of their beautiful attire. Their wings are also embroidered with lovely patterns. The colors on butterfly wings are actually a layer of powder. If you gently touch them, you'll get covered in what we call "scale powder." Under a microscope, you'll find that these powders come in various shapes—some resemble small fans, while others look like fine arrows. This powder consists of two color sources: one is pigment color, and the other is structural color. Under the influence of chemistry and light, they transform into beautiful patterns and colors. This powder is actually small wings that grow on the butterfly's large wings, specifically designed to help them fly. With it, butterflies can dance gracefully among the flowers.
Knowledge Encyclopedia
Butterflies belong to the invertebrate group. Invertebrates include insects, mollusks, and annelids, among others. They are animals without a backbone. Among them, insects all have six legs, mollusks have soft bodies, and annelids are composed of many segments connected in sequence. Invertebrates make up the majority of the over 1.5 million species of animals.
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