Among the vast rainbow of fruits, blue fruits are so rare that scientists classify them as outliers. But strip away a blueberry’s waxy outer coating and the berry looks black. Squish it and the juice ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The quandong’s fruit appear intensely blue, but without ...

Walk through a tropical rainforest, and you quickly notice a pattern in the fruits growing around you. Most are red, orange, purple, or sometimes nearly black. Blue fruits appear to exist, but ...