This chapter talks about how humans are accustomed to seeing the world in high resolution. Compared to many other animals, humans' eyes are not particularly sensitive to light; nor is their sense of color especially good. The undoubted splendors of nature's ultraviolet colors are totally invisible to humans, as are the world's rich natural sources of polarized light. But when it comes to discerning fine spatial detail, few animals come close to humans. But regardless of whether the visual task is to follow a tiny target or to keep track of the physical arrangements of objects in a scene, all aspects of animal life have steered the evolution of spatial vision, particularly the distribution of an eye's sampling stations in visual space.
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