Figure 1From: K r /K c but not d N /d S correlates positively with body mass in birds, raising implications for inferring lineage-specific selectionAvian phylogeny. Total evidence nucleotide tree from Jarvis et al. [40] displaying the 48 species considered in our study. Branches are coloured according to log (body mass) in grams. Full species names are given in Additional file 2.Back to article page