These Pollia condensata berries are so colorful that they might have been picked minutes ago. In fact, they were gathered in 1974. Like beetles and butterflies, their color comes not from pigments but from the refractive geometries of their surface coverings, which don’t degrade over time. (Some beetle colors even shine true after nearly 50 million years.) Researchers say that P. condensata's blue is the most intense color in the natural world.
Image: Vignolini et al./PNAS