Researchers have suggested a correlation between UV-dark areas of flowers used to navigate pollinators, but this has not been proven. ( Watch colorful rainbow corals glow in the dark .) ...

Image of a flower with blue petals on a blue background. I can almost feel it, beneath my parka. Not quite, but almost: burgeoning, blossoming, a murmur of springtime. At the Solomon R. Guggenheim ...