Polarization-based brightness discrimination in the foraging butterfly, Papilio xuthus.


The human eye is insensitive to the angular direction of the light e-vector, but several animal species have the ability to discriminate differently polarized lights. How the polarization is detected is often unclear, however. Egg-laying Papilio butterflies have been shown to see false colours when presented with differently polarized lights. Here we asked… (More)
DOI: 10.1098/rstb.2010.0200


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