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<b>Did you know that on average the ratio of cones to rods is higher in women than men?</b><br>
<b>-</b> From this it is assumed that women have greater spatial resolution in the photopic state, but men see better in the dark (scotopic).<br>
<b>-</b> This is thought by some to have evolved due to the differences in hunter/gatherer roles in early man.<br>
<b>-</b> Males who could see better at night returned home from more hunts so got the chance to pass on their genes.<br>
<b>-</b> Females with greater colour vision could better distinguish edible berries, or the ripeness of fruit, etc.<br>
<b>-</b> Colour blindness is far more likely in men than women.<br>
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