FIGuRE 1. TRADITIoNAL AND NEw EsTIMATEs oF THE PIE oF LIFE The pie on the left shows a traditional estimate of the relative richness of different groups of organisms based on numbers of described species (Wilson 1992), the middle shows an estimate based on projected richness of different groups (Mora et al. 2011), and the pie on the right shows estimates based on the projected richness of different groups in the present study. The pie on the right is estimated based on Scenario 1 (Table 1), but other scenarios and assumptions give very similar estimates of the relative richness of different groups (Tables 1 – 4), even as total species richness changes. See the online edition for a color version of this figure.