I recently heard a fascinating Radiolab report about tetrachromacy—or the presence of a fourth cone for color perception in people, usually women. Most people can see a million colors; tetrachromats ...

We sometimes think of colors as objective properties of objects, much like shape or volume. But research has found that we experience colors differently, depending on gender, national origin, ...

After decades of exhaustive study, scientists have concluded that human tetrachromacy is real. Some people have a truly superhuman range of color vision. In fact, there are two distinct types of ...