The fruit of Africa's marble berry (Pollia condensata) is a true living gemstone, sporting a stunning metallic blue sheen that never fades. Only the berries aren't actually blue in the sense most of ...

In the tropical forests of Australia and Southeast Asia grows a tree that might just be the champion of blue fruits. Its name? The blue quandong, or Elaeocarpus angustifolius. It boasts an intense, ...

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 ...

Scientists have uncovered how Africa’s marble berry creates its intense blue shine without pigment. Using microscopic structures, the fruit reflects light more strongly than any known land organism, ...