Scientists reconstructed 500 million years of evolutionary history to reveal which came first: colorful signals or the color vision needed to see them. The natural world is awash with color, and many ...

In a genetic study of tarsiers' eyes, Dartmouth researchers suggest that primates developed highly acute, three-color vision that permitted them to shift to daytime living. Credit: Nathaniel Dominy, ...

Color is more than a sensory pleasure; it is a tool refined by evolution. Our ability to perceive a broad spectrum of hues is a remarkable biological achievement shaped by survival pressures, social ...