Monday, December 10, 2007

Source of Green Feather Pigments

From the abstract of a paper on a ring species of Phylloscopus warbler in Asia:

These results might provide an explanation as to why some species, such as the greenish warblers (Phylloscopus trochiloides), have phylogeographic breaks in mitochondrial or chloroplast DNA that do not coincide with sudden changes in other traits.

I guess we know why they're greenish now.

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