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One in 30 people can see 'invisible' colors that no-one else can
Most humans have three cones in their eyes that detect variations ... to distinguish more subtle variations of color. To see if you might be a tetrachromat, look at the spectrum below and see ...
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Meet three people who may see the world completely differently than you do
People can perceive colour very differently from ... Instead of having three types of cone cells in her eyes, Antico may have four, making her a tetrachromat. According to the Tetrachromacy ...