"Why are there so many songs about rainbows?" sings Kermit the Frog in a song (about rainbows) called "Rainbow Connection" from 1979's "The Muppet Movie." And it's not just songs that feature rainbows ...

An exotic colour at the far end of our visible spectrum and often associated with royalty, purple is relatively rare in nature. But some vibrant plants, animals and fungi do show off a regal purple, ...

Color can add dimensionality and richness to scientific communications. In figures, color is typically used to differentiate information into classes. The challenge is picking colors that are ...

Red is imbued with meaning for humans: it is the colour of danger, blood, attraction and romance. And where crimson and scarlet hues appear in nature, they often carry an important message. Ladybirds, ...

It might seem like a simple question. But the science behind a blue sky isn't that easy. For starters, it involves something ...

Rainbow connectivity is an intriguing ... graph where at least one vertex has a unique color not shared by any other vertex in the path. This Nature Research Intelligence Topic summary is one ...