Linked from
The 21 pages that link to Structural coloration, each with the reason it gives.
ElytronRelated: Some beetle elytra display vivid colors generated by layered or ordered cuticle.
ButterflyRelated: Some butterfly blues and iridescent effects arise from scale structure.
PeacockRelated: Microscopic structures in train feathers create the bright iridescent colors.
Mantis shrimpRelated: Mantis shrimp shells use nanoscale structures that can generate vivid colors.
CuttlefishRelated: Cuttlefish skin uses reflective cells to produce colors beyond pigment alone.
BirdwingRelated: Microscopic wing structures contribute to the iridescent colors of some birdwings.