Figure 3 : Distribution and sample of vertebrate data from the Tree of Sex Database.

From: Tree of Sex: A database of sexual systems

Figure 3

The ‘Other’ ring includes parthenogenesis, gynogenesis, and hybridogenesis. The XY/ZW ring is colored blue for XY and red for ZW taxa. The sexual trait data displayed in the rings is based on 2,145 vertebrate entries. Remaining features as in Figures 1 and 2.