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Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot ...
The exact cause remains to be determined, but scientists do know that eye color began to change long before recorded history began. The following is a transcript of the video. All blue-eyed people ...
It seems a little unfair. The ladies love blue eyes, and babies already have a cuteness advantage. The iris is the muscular ring around the pupil. And its color depends on a protein called melanin ...
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