Five-way Venn Diagram of orthologous genes in five species. Orthologues in human (red), mouse (orange), fly (yellow), worm (green), and yeast (blue). Numbers of genes overlapping between all five species are given in their respective colors and encircled. All other groups of orthologous genes only show the number of genes found in the organism with the largest number in that group. Orthologues were retrieved from Ensembl 50.