A quest to gain a more complete picture of color vision evolution has led scientists to an up-close, genetic encounter with one of the world's most rare and bizarre-looking primates. They have ...

Scientists have finally solved a major flaw in a century-old theory of color perception first proposed by Erwin Schrödinger.

Researchers have harnessed the human eye's color-sensing strengths to give the eye the ability to distinguish between objects that differ in thickness by no more than a few nanometers, about the width ...

Color blindness is a condition where people find it difficult to distinguish between certain colors. This color blindness test is a simple eye test to find out whether or not you are color blind.

Two male squirrel monkeys now see the world in a whole new way — in full color. Female squirrel monkeys can see in color, but male squirrel monkeys are normally red-green colorblind because they lack ...

Our ability to see with color vision depends on the presence and function of light-sensing pigments in the cones of our eyes. Color blindness, or color vision deficiency, happens when one or more of ...

To find food, dazzle mates, escape predators and navigate diverse terrain, birds rely on their excellent color vision. “Humans are color-blind compared to birds and many other animals,” said Mary ...

The shift from warm summer to cool fall conditions can be stressful for many animals. Surviving each season requires a multitude of different physiological and behavioral traits that scientists are ...