Why do people have different color eyes? Is there an evolutionary reason?
I believe evolution is the reason for all the differences in races. Races which evolved closer to the equator have brown eyes, darker skin and more curly hair–this was natures way of protecting them from the sun. Races which evolved farther away from the equator have a much wider variety of eye color, hair color and shades of skin. This is because the sun was not as harsh which allowed nature to take diverse courses in evolution.
