Green eyes, for example, only affect about 2% of the world's population. This color is often the result ... gray eyes are also a symbol of the richness of our genetic heritage.

Ever wondered if the latter is the case? There are four main eye colors in the human population. These are brown, blue, hazel and green. We talked to Dr. Purnima Patel, spokesperson for the ...

Protests for abortion rights around the world are often awash in the color green – handkerchiefs ... Alanis said green was a "symbol of hope, health, life." Giselle Carino, CEO of Fòs Feminista ...

The complexity of these genetic factors as well as geographical and population-specific variations "underscores why green eyes are among the rarest eye colors," he said. "Green eyes are typically ...

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 ... as red-green or blue ...

Others held up signs with green lettering or background. The color became a symbol of resistance to anti-abortion laws during pro-abortion rights activist efforts in Argentina. Then it was taken ...