Scientists in California claim to have discovered a new jaw-dropping color no human has ever seen before. The catch? You have to zap your eyes with laser pulses to see it. Five scientists at the ...

The eyes are often the first thing we see when we look at someone. And when you look at them up close, everyone’s eye color is a kaleidoscope of shapes and hues. How does eye color work? The answer ...

Wild cats showcase a stunning diversity of eye colors, proving a mystery for researchers because most wild species are known to have narrow eye color schemes (usually black, brown or yellow). Eye ...