Food search through the eyes of a monkey: a functional substitution approach for assessing the ecology of primate color vision.

Abstract excerpt

Efficient detection and selection of reddish fruits against green foliage has long been thought to be a major selective pressure favoring the evolution of primate trichromatic color vision. This has recently been questioned by studies of free-ranging primates that fail to show predicted differences in foraging efficiency between dichromats and trichromats. In the present study, we use a unique approach to...

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