Here, you just need to backtrack from Percy's message.
Supplementary Figure 7: Gene family expansions and contractions. (264 KB)
(a) Inferred gene gains (red) and losses (blue) in 8,877 gene families shared by 10 mammalian species are reported for each branch of the tree. (b) Number of gains (red) and losses (blue) per million years for each branch of the tree; human (H), chimpanzee (C), human and chimp (HC), orangutan (O), apes (A), rhesus macaque (M), apes and Old World monkeys (AO), marmoset (Cj), primates (P), mouse (S), rat (R), rodents (N), primates and rodents (PN), dog (D), horse (E), dog and horse (DE), cow (B) and Afrotheria (Af).
(I'm pretty sure the colours are swapped between graphs despite what the legend says)
Edited by CRR, : "not" deleted from last sentence