Are Blue Eyes Really Blue? - Sharp Science

People with blue eyes don't actually have any blue pigment. It's actually lack of melanin that causes light to scatter in your eyes, creating an illusion of

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Blue Eyes: How Rare Are They?

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Explainer: How our eyes make sense of light

what makes blue eyes blue? - academy of eye care

How a Sharp-Eyed Scientist Became Biology's Image Detective

Why Did Blue Eyes Evolve?, Resource Center

Why do cats' eyes glow in the dark?