Figure 1. (a) The relationship between average family adult body weight (M) and family average maximum life span (AMLS) in Aves: Ln(AMLS) = 0.20Ln(M) + 1.72. (b) Quantile-Quantile plot for the linear regression model of the average body mass and longevity for 92 avian families. (c) Δresiduals modulus of AMLS and BM as a function of ΔGD (families): y = 1.11x + 0.18, R² = 0.009 See