Primate species with better color vision are not more likely to have red skin or fur coloration, as previously thought.
Primate species with better colour vision are not more likely to have red skin or fur colouration, as previously thought., suggest that red skin and/or red-orange fur may be beneficial for use in social communication even in primate species that don't have particularly good colour vision.
Lead author Robert MacDonald from the University of Bristol explained:"There is a profusion of colour in the animal kingdom -- think of the striking feathers of a bird of paradise, or the array of vivid hues on display in a coral reef. "Primates such as monkeys, apes and lemurs are the exception to this. Several primate species have really vibrant coloration, in particular bright red skin on the face or anogenital region which can change intensity to signal things like fertility or rank in the dominance hierarchy, or red-orange fur.
Primates are known to use their red colour traits for communication with other members of their species, for example in signalling information about fertility or rank in the social hierarchy. It seems intuitive that having a better colour visual system that allows these traits to stand out more might have facilitated the evolution of these traits in the first place -- it would make sense for a species with better colour vision to evolve to be more colourful to take advantage of this ability.
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