Mean instantaneous mass growth dM/dt computed at z ≃ 0 as a function of the group mass for three ellipticity bin (left panel) and three connectivity bins (right panel). The ellipticity is binned according to an almost spherical (ϵ < 0.05), a quite elliptical (0.05 < ϵ < 0.1), and an elliptical shape (ϵ > 0.1). The connectivity is binned such that clusters have a low (κ ∈ {1, 2}), medium (κ = 3), or high (κ > 3) connectivity. The error bars are the errors on the mean, derived from bootstrap resampling. In gray we show the point distribution of the sample.