Scientists Discover a Subtle Difference in How Monkeys Perceive The World

New research has uncovered an intriguing advantage human vision has over that of our monkey cousins. Thanks to small differences in the structure of the retina, our eyes are able to perceive a greater range of blue tones.
The findings, reported by researchers from the University of Washington, the Medical University of Vienna, and the University of Sydney, shed light on how human beings have evolved since diverging from ancient monkey lineages some 25 million years ago.
Scientists Discover a Subtle Difference in How Monkeys Perceive The World