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prismatic

Registered:5 years ago
Karma:7003
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"They present us with a variety of brilliant hues, often of the greatest purity, and combined in striking contrast and conspicuous patterns. Their use depends upon their boldness and visibility, not on the presence of any one color. Hence we find among these groups some of the most exquisitely-colored objects in nature... Conspicuousness being useful, every variation tending to brighter and purer colors was selected."