The Blue Morpho Butterfly's vivid, iridescent blue coloring results from the microscopic scales on its wings, which reflect light. The wing colors vary with the viewing angle. They rarely rest with their wings open, and it is truly a remarkable sight! 🦋❤️ #bluemorphobutterfly #bluemorpho #rainforestbutterflies #bluemorphobutterfly #butterflyworld | Butterfly World

The wings of blue morpho butterflies are iridescent blue — but contain absolutely no blue pigment! The color is achieved by tiny scales on the wings that have ridges, ribs and other structures that play with the physics of light at the nanoscale to reflect only bright blues. | Center for Biological Diversity