Scientists have revealed that purple, a popular color often associated with royalty, is fake. A figment of our imaginations.

Artificial dyes made using chemicals and are thus regulated by the Food and Drug Administration to ensure their safety. But ...

Red and yellow and pink and green Purple and orange and blue, I can sing a rainbow, Sing a rainbow, Sing a rainbow too. Red and yellow and pink and green Purple and orange and blue, I can sing a ...

Our three photoreceptors reveal a rainbow to us - but we can't begin to imagine ... During mating season, the skin of the males turns red, blue, green and yellow. Between three and seven centimetres ...