Fig. 2

Body mass of amniotes. Masses (in grams) are maxima for ectotherms and means for endotherms. Red: birds, blue: squamates, purple: turtles and yellow: mammals (both placentals and marsupials). Note that the x axis is log10 scaled
Body mass of amniotes. Masses (in grams) are maxima for ectotherms and means for endotherms. Red: birds, blue: squamates, purple: turtles and yellow: mammals (both placentals and marsupials). Note that the x axis is log10 scaled