Entomologist and insect photographer Alex Wild has captured a gorgeous image of this Greta oto, or glasswing butterfly, in Belize (click to enlarge). You can see the color of the flowers perfectly through its wings. Though it looks like an alien or mutant, the glasswing is perfectly natural. Most butterflies have tiny, colorful scales on their wings, but Greta oto does not. So what you're seeing here is a butterfly wing without adornment. See more of Alex Wild's work on his G+ page.