 Analogies are false positives of evidence of common ancestry. Morphological traits, it is presumed, are more subject to selective pressures that can generate these false positives, and so molecular data from sources less subject to selective pressures (i.e., neutral sites) are preferable for reconstructing phylogenetic history. From those phylogenies, analogies can be better identified, offering evidence for appeals to natural selection (in the form of convergent evolution or other evolutionary processes) as an explanation for the pattern of biodiversity and trait distribution (Whittall &amp; Hodges 2007 provides a good example of this reasoning in regard to pollinator mode and morphology). Put another way, molecular data helps biologists explain why what appear to be homologies fail to form nested hierarchies. Molecular data can identify which of those might be analogies instead, and this helps resolve what would otherwise appear to be conflicts in phylogenetic inference. This is one way biologists use phylogenies to offer data-driven, theoretically-grounded evolutionary explanations, in contrast to “just-so” stories.