You probably know a number of people who have blue eyes (and you may possess them yourself), but just about 10,000 years ago, blue-eyed folks were unheard of. For a long time, all humans had brown ...

As much as 80% of the global population is believed to have brown eyes, while only 8 to 10% of people worldwide have blue eyes, 5% have hazel eyes and about 2% of all people have green eyes.

Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like ...

Blue-eyed folks may be rarer, but their eye color has a fascinating history. All blue-eyed people can trace their ancestry back to a single genetic mutation that occurred thousands of years ago in ...

The vast majority of people in the world have brown eyes. The second most common color is blue, but people can also have hazel, green, or gray eyes. According to a 2020 study, 79% people worldwide ...

or about 6.4 billion people, have brown eyes—by far the most common eye color on the planet. Rounding things out are blue eyes, the second-most-common eye color, at 8% to 10% (or roughly 800 ...

But as billions of the insects rise from beneath the ground, people have been discovering a few rare individuals with blue eyes, like pairs of tiny robin’s eggs. Blue-eyed cicadas are often ...