| Collection of the goldfinches took place when plumage dichromatism between males and females is subtle. |
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| Protanopia, deuteranopia and tritanopia are all types of dichromatism. |
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| Molecular phylogenetics and evolution of sexual dichromatism among populations of the Yarrow's spiny lizard. |
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| Both sexes are illustrated for species that exhibit sexual dichromatism, such as wrasses, parrotfishes, and triggerfishes. |
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| Visual fish transects performed at two sites were used to assess the seasonal frequency of sexual dichromatism in adults. |
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| Males and females were initially distinguished by sexual dichromatism as described in Allen et al. |
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| There long had been a bias among researchers to think of the evolution of sexual dichromatism as driven by changes in male coloration. |
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| Geographic variation in sexual dichromatism of Crotaphytus collaris. |
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| Dichromatism may have been lost repeatedly within the dabbling ducks, and thus it is possible that monochromatism is the derived state in Grey Teal. |
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