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See Also
See Again
This is why some people have blue or green eyes - Have you ever wondered why some people have brown eyes and others have green eyes? We all know that genetics is behind it, but click here to learn exactly how that happens!
© Shutterstock
0 / 30 Fotos
Talented celebrities - Many celebrities became famous for their talented performances.
© Getty Images
1 / 30 Fotos
Talented celebrities - They're artists that we learned to admire and respect.
© Getty Images
2 / 30 Fotos
Detail - But there's something about them that is just so... eye-catching. Do you know what it is?
© BrunoPress
3 / 30 Fotos
Beautiful eyes - It's the color of their eyes! Blue or green-colored eyes such as Jennifer Aniston's are rare.
© Getty Images
4 / 30 Fotos
Rare - According to scientists, people with green or blue eyes belong to a small percentage of world population.
© Getty Images
5 / 30 Fotos
Statistics - It is estimated that only around 2% of the world population has green eyes.
© Shutterstock
6 / 30 Fotos
Locations - Most of the population that has light-colored eyes are European.
© Shutterstock
7 / 30 Fotos
Countries - The United Kingdom and Ireland are examples of where most of green-eyed people are concentrated.
© Shutterstock
8 / 30 Fotos
Question - But why are some people born with blue or green eyes?
© Shutterstock
9 / 30 Fotos
Genetics - Chromosomes 1, 15 and 19 are responsible for transmitting the mother and father's genes to the baby.
© Shutterstock
10 / 30 Fotos
Genetics - If there is a brown-eye gene in that mix, the baby will be born with brown eyes because that is the dominant gene - this is what happens to most of the population in the world.
© Shutterstock
11 / 30 Fotos
Genetics - But if both genes that are passed on to the baby are recessive, then it will be born with blue or green eyes.
© Shutterstock
12 / 30 Fotos
Melanin - The amount of melanin is what defines the eyes' exact color.
© Shutterstock
13 / 30 Fotos
Blue eyes - The blue represents a total absence of melanin.
© Shutterstock
14 / 30 Fotos
Green eyes - As for green eyes, a certain amount of melanin can be found.
© Shutterstock
15 / 30 Fotos
Function - Melanin has a very important function: to protect eyes from sunlight.
© Shutterstock
16 / 30 Fotos
Sensitivity - That's why light-colored eyes are more sensitive to solar rays.
© Shutterstock
17 / 30 Fotos
Double care - People with green or blue eyes need to be doubly careful when it comes to preventing certain eye problems such as cataracts.
© Shutterstock
18 / 30 Fotos
Research - In 2008, a study revealed surprising information about blue eyes.
© Shutterstock
19 / 30 Fotos
Theory - Danish researcher Hans Eiberg said that everyone who has blue eyes is somehow related.
© Shutterstock
20 / 30 Fotos
Explanation - According to the research, blue eyes appeared around 7000 years ago thanks to a genetic mutation.
© Shutterstock
21 / 30 Fotos
Location - According to the study, that happened near the Dead Sea region, and the mutation has since then been passed on through generations.
© Shutterstock
22 / 30 Fotos
New studies - But according to a 2017 CNN article, all human eyes are brown!
© Shutterstock
23 / 30 Fotos
New theory - According to the recent study, some people just appear to have light-colored eyes because of their low melanin content.
© Shutterstock
24 / 30 Fotos
Phenomenon - Have you noticed what happens to babies sometimes?
© Shutterstock
25 / 30 Fotos
Mutation - Some babies are born with blue eyes but the color ends up changing to brown with time.
© Shutterstock
26 / 30 Fotos
Explanation - The explanation for this phenomenon may be contained in a study published by Live Science in 2011.
© Shutterstock
27 / 30 Fotos
Main cause - According to researches, the child's development includes a rise in melanin levels, which ends up changing their eye color.
© Shutterstock
28 / 30 Fotos
Keep an eye out! - We bet you'll never look at someone with blue or green eyes the same way!
© Shutterstock
29 / 30 Fotos
This is why some people have blue or green eyes - Have you ever wondered why some people have brown eyes and others have green eyes? We all know that genetics is behind it, but click here to learn exactly how that happens!
© Shutterstock
0 / 30 Fotos
Talented celebrities - Many celebrities became famous for their talented performances.
© Getty Images
1 / 30 Fotos
Talented celebrities - They're artists that we learned to admire and respect.
© Getty Images
2 / 30 Fotos
Detail - But there's something about them that is just so... eye-catching. Do you know what it is?
© BrunoPress
3 / 30 Fotos
Beautiful eyes - It's the color of their eyes! Blue or green-colored eyes such as Jennifer Aniston's are rare.
© Getty Images
4 / 30 Fotos
Rare - According to scientists, people with green or blue eyes belong to a small percentage of world population.
© Getty Images
5 / 30 Fotos
Statistics - It is estimated that only around 2% of the world population has green eyes.
© Shutterstock
6 / 30 Fotos
Locations - Most of the population that has light-colored eyes are European.
© Shutterstock
7 / 30 Fotos
Countries - The United Kingdom and Ireland are examples of where most of green-eyed people are concentrated.
© Shutterstock
8 / 30 Fotos
Question - But why are some people born with blue or green eyes?
© Shutterstock
9 / 30 Fotos
Genetics - Chromosomes 1, 15 and 19 are responsible for transmitting the mother and father's genes to the baby.
© Shutterstock
10 / 30 Fotos
Genetics - If there is a brown-eye gene in that mix, the baby will be born with brown eyes because that is the dominant gene - this is what happens to most of the population in the world.
© Shutterstock
11 / 30 Fotos
Genetics - But if both genes that are passed on to the baby are recessive, then it will be born with blue or green eyes.
© Shutterstock
12 / 30 Fotos
Melanin - The amount of melanin is what defines the eyes' exact color.
© Shutterstock
13 / 30 Fotos
Blue eyes - The blue represents a total absence of melanin.
© Shutterstock
14 / 30 Fotos
Green eyes - As for green eyes, a certain amount of melanin can be found.
© Shutterstock
15 / 30 Fotos
Function - Melanin has a very important function: to protect eyes from sunlight.
© Shutterstock
16 / 30 Fotos
Sensitivity - That's why light-colored eyes are more sensitive to solar rays.
© Shutterstock
17 / 30 Fotos
Double care - People with green or blue eyes need to be doubly careful when it comes to preventing certain eye problems such as cataracts.
© Shutterstock
18 / 30 Fotos
Research - In 2008, a study revealed surprising information about blue eyes.
© Shutterstock
19 / 30 Fotos
Theory - Danish researcher Hans Eiberg said that everyone who has blue eyes is somehow related.
© Shutterstock
20 / 30 Fotos
Explanation - According to the research, blue eyes appeared around 7000 years ago thanks to a genetic mutation.
© Shutterstock
21 / 30 Fotos
Location - According to the study, that happened near the Dead Sea region, and the mutation has since then been passed on through generations.
© Shutterstock
22 / 30 Fotos
New studies - But according to a 2017 CNN article, all human eyes are brown!
© Shutterstock
23 / 30 Fotos
New theory - According to the recent study, some people just appear to have light-colored eyes because of their low melanin content.
© Shutterstock
24 / 30 Fotos
Phenomenon - Have you noticed what happens to babies sometimes?
© Shutterstock
25 / 30 Fotos
Mutation - Some babies are born with blue eyes but the color ends up changing to brown with time.
© Shutterstock
26 / 30 Fotos
Explanation - The explanation for this phenomenon may be contained in a study published by Live Science in 2011.
© Shutterstock
27 / 30 Fotos
Main cause - According to researches, the child's development includes a rise in melanin levels, which ends up changing their eye color.
© Shutterstock
28 / 30 Fotos
Keep an eye out! - We bet you'll never look at someone with blue or green eyes the same way!
© Shutterstock
29 / 30 Fotos
This is why some people have blue or green eyes
Click on this gallery to learn more about why some people are born with blue or green eyes.
© Shutterstock
Do you know why some people are born with blue or green eyes? Or that eye color can change with time?
Click here to find out those answers and more!
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