Animals sculpt the optical properties of their tissues at the nanoscale to give themselves “structural colors.” New work is piecing together how they do it. Peacocks, panther chameleons, scarlet ...

In nature, it's not uncommon to observe animals that change color with the seasons. You may have heard of the arctic fox or the mountain hare, which are white in winter and brown in summer. This ...

A shiny is a very rare Pokémon that comes in a different color than usual. It may be a fictional concept, but nature has no shortage of similar surprises. Animals, plants, food, and other unexpected ...