Image: “A highly resolved Tree of Life, based on completely sequenced genomes . The image was generated using iTOL: Interactive Tree Of Life , an online phylogenetic tree viewer and Tree Of Life resource. Eukaryotes are colored red, archaea green and bacteria blue. PNG image traced by hand to produce SVG version …  Citation: Ciccarelli, FD (2006). “Toward automatic reconstruction of a highly resolved tree of life.” (Pubmed). Science 311(5765): 1283-7 …  Citation: Letunic, I (2007). “Interactive Tree Of Life (iTOL): an online tool for phylogenetic tree display and annotation.”. Bioinformatics 23(1): 127-8.” — This work has been released into the public domain by its author, User A1 at the English Wikipedia project.