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 ...

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 ...

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 ...

Poor color vision or color vision deficiency means you can’t see the depth or richness of certain color shades. It’s commonly referred to as color blindness. Although color blindness is the common ...

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 ...

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 ...

Zachary Lehr has trouble distinguishing some colors. The 6-year-old has a mild form of color blindness, a condition that affects 5 to 10 percent of the U.S. population, according to National ...

The most common types of color blindness, or color vision deficiency, are genetic. However, other types may develop due to injuries, eye diseases, health problems, and side effects of treatment.