The following poem by David Maddison was published in Systematic Biology (doi:10.1093/sysbio/sys057) under a CC-BY-NC license.I think that I shall never seeA thing so awesome as the TreeThat links us all in paths of genesDown into depths of time unseen;Whose many branches spreading wideHouse wondrous creatures of the tide,Ocean deep and mountain tall,Darkened cave and waterfall.Among the branches we may findCreatures there of every