In the caption for figure 1, the key in the figure correctly describes different groups, but the legend has the group identities reversed. The text currently says, 'Filled bars represent flatwings (FW); open bars represent normal-wings (NW)'. But it should actually read, 'Open bars represent flatwings (FW); filled bars represent normal-wings (NW)'. This does not affect any conclusions or other aspects of the paper.
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