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Stories about: iodopsine

Half of the Women See More Colors Than the Rest of the People Do Normally, people have three types of cone cells for daylight, for detecting different colors. But some women can see extra colors as they have four types of cone cell receptors. They are called tetrachromats. Compared to them, we all are color blind.The first tetrachromat woman was discovered by researchers at Cambri... 26 June 2007 14:16 GMT