Heatmaps showing the variation in median-likelihood stellar mass in M_⊙ (top) and SFR (ψ) in units of M_⊙ yr⁻¹ (bottom) as a function of redshift in our IRAC-selected sample. The redshift axis is common to both plots, and the number of galaxies in each bin is indicated by the colour scales to the right. Upper panel: the dashed blue line indicates the 95% mass completeness limit as a function of redshift, derived using the method from Pozzetti et al. (2010).