Coloring according to the Genbank tree: Species paths are from Genbank so that "root, cellular organism, Eukaryota, Fungi/Metazoa group, Metazoa; Eumetazoa, Bilateria, Coelomata, Deuterostomia, Chordata, Craniata, Vertebrata, Gnathostomata, Teleostomi, Euteleostomi, Sarcopterygii, Tetrapoda, Amniota, Mammalia, Theria, Eutheria, Euarchontoglires, Primates, Simiiformes, Catarrhini, Hominoidea, Hominidae, Homo/Pan/Gorilla group, and Homo Sapiens" qualifies human for example. Paths are derived from a rooted tree where edge lengths are unknown. Taxonomic distances are calculated according to the procedure described in section 2.2, subsection II. Colors are then selected according to section 2.3, 2.4 and 2.5. Data embedded in the colorimetric space are displayed in Figure 7 .