Stellar mass versus sSFR. Green points are the GPs presented in this work, light green are GPs with HeII emission. The green star represents the median of the GPs, corresponding to a stellar mass of 2.6 × 10⁹ M_⊙, an sSFR of 12 Gyr⁻¹, and thus a mass-doubling timescale of 47 Myr. Black points represent a set of local galaxies (z < 0.03) from the Califa survey (Catalán-Torrecilla et al. 2015; Torrecilla15). The black star represents the median of this sample, it corresponds to a stellar mass of 3.2 × 10¹⁰ M_⊙, a sSFR of 0.12 Gyr⁻¹ and thus a mass-doubling timescale of 8.3 Gyr, which is on the order of the age of the Universe. We also show the sSFR-mass relation at a variety of redshifts from Tasca et al. (2015; dash-dot line, T15), Karim et al. (2011; dashed line, K11), and Whitaker et al. (2012; dotted line, W12).