Fascinating Scientific Study Says That All Humans Actually Have Brown Eyes

Do you have blue eyes? Think again!

Which color eyes do you like the best? Many people are proud to have blue or green eyes, but what if we told you that all eyes are actually brown? And there’s science to prove it!


We all have brown eyes. Yep, even you, you lucky reader who happens to have blue or green or hazel or some other fancy eye color. Scientists have now proven that all eyes are technically brown.

Now, before you say anything, please notice the word “technically”. What this really means is that all eyes contain the same brown pigment, but the amount of pigment differs from person to person, causing the “illusion” of different colored eyes.

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Almost 1 in every 5 people has blue eyes in the U.S. but scientists have now proven that all eyes are actually brown, even if they look like the ones in the photos above and below.

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So how does this work? Well, it’s all about a pigment called  melanin. This pigment is located in skin cells, as well as eye cells and hair strands. It’s responsible for giving color to our hair, eyes and skin.

In the eyes, melanin comes in the form of melanocytes, which are tiny brown cells.

The thing that changes your eye color is the amount of melanocytes you have. People with plenty of these cells will have darker eyes, as they’ll be able to absorb more light. Meanwhile, if you have fewer melanocyes, your eyes will reflect more light and be a lighter shade.

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But wait, I hear you say, that doesn’t make sense! If melanocytes are all brown, then why don’t we all have eyes that are either light brown or dark brown?

Well, this is where things get complicated. Light behaves in strange ways. When waves of light come into contact with the eye, they get bounced around in a certain way. The process is known as “Tyndall scattering”, and this is what causes eyes to have colors like blue or green.

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If you do have light-colored eyes, you might have noticed that they seem to change color sometimes. Again, this is all to do with light. If you stand in a sunny spot, your eyes might appear to be a different shade than if you’re standing in the shade.

Babies are often born with bright eyes that become darker over time. This is because their bodies produce more melanin as they grow older.

And did you know that babies can have completely different eye colors to their parents? It all depends on a complex combination of genes.

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Some people seem to have multi-colored eyes. This pheonomenon is caused by different concentrations of melanocytes in different areas of the eye. The area closest to the pupil may have more melanocytes and therefore appear to be a much darker shade than the rest, for example.

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If you have hazel eyes, this means you don’t have enough melanocytes to have dark eyes, but you have too many to have blue or green eyes.

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If you have brown eyes, you have a lot of melanocytes. This color is the most common on Earth, but it doesn’t mean you aren’t special in other ways!

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In really rare cases, people can have eyes of totally different colors. This, once again, is caused by different amount of melanocytes in each eye. It’s known as complete heterochromia.

So, how do you feel about learning that we all have brown eyes? Let us know which color you like the best and SHARE this story with your friends.