Overview: This explorer shows how the Morpho butterfly wing works as a light-based signal system. The wing reflects brilliant blue light because of structure, not ordinary blue pigment.
The wing can act as sender, reflected blue light is the signal, and a receiver may be another butterfly, predator, or observer.
Overlapping chitin scales and ridges organize reflected light at the wing surface.
Nanoscale lamellae and air gaps interact with light to create structural color.
Ask: What sends the signal? What travels to the receiver? What structure makes it clear? What conditions affect interpretation?
Use the Morpho butterfly system to think about your own signal design.