Crows have a long-term memory so good that they can recall colours for at least a year, a Japanese study has shown. Birds that had identified which of two containers held food by the colour of its lid ...

Color plays an important role in conveying visual information. For example, color can help the observer find an object in a cluttered environment. Although the human eye can distinguish millions of ...

Color plays an important role in conveying visual information, but the language we use to express what we see is limited. Recent studies show that color terms used in Japanese also change over time.