Have you ever touched a butterfly and noticed a fine powder on your fingers? That powder is not random dust; it is made up of microscopic scales that cover the butterfly’s wings. These tiny scales are ...

Engineers have continuously observed scales growing and assembling on a butterfly wing for the first time as the developing insect transforms inside its chrysalis. If you brush against the wings of a ...

If you brush against the wings of a butterfly, you will likely come away with a fine sprinkling of powder. This lepidopteran dust is made up of tiny microscopic scales, hundreds of thousands of which ...