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Content with tag eye coloration .
Asymmetric iris heterochromia in birds
For the first time the unique coloured pattern of the iris of buttonquails (Turnicidae) is described. This unique pattern is due to the presence of a dark-brown crescent in the iris below the...
Intraspecific eye color variability in birds and mammals: a recent evolutionary event exclusive to humans and domestic animals
Human populations and breeds of domestic animals are composed of individuals with a multiplicity of eye (= iris) colorations. Some wild birds and mammals may have intraspecific eye color...