A butterfly eye's view of birds

@article{Frentiu2008ABE,
  title={A butterfly eye's view of birds},
  author={Francesca D. Frentiu and Adriana D. Briscoe},
  journal={BioEssays},
  year={2008},
  volume={30}
}
The striking color patterns of butterflies and birds have long interested biologists. But how these animals see color is less well understood. Opsins are the protein components of the visual pigments of the eye. Color vision has evolved in butterflies through opsin gene duplications, through positive selection at individual opsin loci, and by the use of filtering pigments. By contrast, birds have retained the same opsin complement present in early‐jawed vertebrates, and their visual system has… 

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This review outlines our recent studies on the spectral organization of butterfly compound eyes, with emphasis on the Japanese yellow swallowtail butterfly, Papilio xuthus, which is the most
...