This segment originally aired in December 2023. It aired again in March 2025. Every other Friday on Morning Edition, the Outside/In team answers a question from a listener about the natural world.

Nature is full of an almost infinite array of colors, but some are more unique than others. Apart from the inanimate sky and water, the color blue only some animals and flowers have the privilege of ...

When I was much younger, I would have said that blue was my favorite color. I had a blue 10-speed bicycle, and I loved to stare up into a brilliant blue sky. As I got older, though, I realized that I ...

Scientists have discovered a rainforest fruit that exhibits an intense, metallic blue color without any pigment. This ...

A MAN plants his garden in the spring, and out of the selfsame back-yard soil he gets the white of the lily, the blue of the violet, and the damask of the rose. The rains come down to water it, and ...

Nature is brimming with color in almost every season. While the majority of colors are matte, some are shiny. Evolutionary ...