The ten species shown in bold are the ones that were selected as input to the Common Tree display. The other taxa displayed show the taxonomic relationships between the selected taxa. For example, Eutheria is included because it is the smallest taxonomic group in our classification that includes both Homo sapiens and Mus musculus. A “+” box in the tree indicates that part of the taxonomic classification has been suppressed in this abbreviated view; selecting the “+” will fill in the missing lineage (and change the “+” to a “-”). The Expand All and Collapse All buttons at the top of the display will do this globally. The Search for box at the top of the display can be used to add taxa to the Common Tree display; taxa can be removed using the list at the bottom of the page.