#int.i

From Science Friday:

This is no ordinary butterfly collection. It’s a showcase of blue morphos (Morpho didius), a species native to the forests of South America whose wings—especially the males’—are famed for their brilliant aquamarine sheen. While the first two specimens are a typical male and female, the others are “gynandromorphs”—that is, animals that contain both male and female cells. In these butterflies, the trait manifests on the wings as a patchwork of colors and patterns, borrowed from both sexes.