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No blue skies for mice: Scientist study differential distribution of photoreceptors in retina of mice

Guppies, hyenas and mice share one particular retinal specialization in their eye: Photoreceptors (?cones?) sensitive to ?green? light are largely located in the top half of the eye, whereas cones sensitive to ?blue? light dominate the bottom half. Scientists have investigated this retinal specialization in mice, showing that the apparent match between ?color? and differential cone distribution brings the animals no advantage.
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