The animal kingdom gives us rainbows of color with butterflies and chameleons, and clownfish, but birds give us just as much of a show. Among the peacock, the toucan, and the macaw, there’s a ...

If optimists see the world through rose-colored lenses, some birds see it through ultraviolet ones. Avians have evolved ultraviolet vision quite a few times in history, a new study finds. Subscribe to ...