Planarians move up in the tree of life, no longer such a lowly life form

[vimeo width=”680″ height=”400″]http://vimeo.com/11416114[/vimeo] Convolutriloba retrogemma, the dreaded red planaria flatworm, is a loathed aquarium pest which just moved up in the world. Although once grouped with the Platyhelminthes, the true flatworms, the Planaria which include the familiar pest have recently…