Time evolution of some key quantities for a sample of z ∼ 0 red galaxies. In clockwise order, we show the sSFR, SFR, colour u − r, νL_ν(250 μm), dust mass, and specific dust mass. An evolving GV (assuming the median mass evolution of the sample) is shown in the (u − r)−time plot. Tracks of individual galaxies in each diagram are shown as grey lines, and the median and 16 − 84th percentiles dispersion of all the tracks in red. Finally, we report the typical e-folding timescales associated with the (decaying) evolution of the sSFR and dust mass.