Measurements of galaxy assembly bias captured by each secondary property from the stellar mass, r-band, blue, and red galaxy samples (rows) across different number densities (columns) as a function of redshift. The y-axis displays our measurements of galaxy assembly bias, which we extract by averaging from 8 to 25 h⁻¹ Mpc the ratio of galaxy clustering of the sample shown in the legend and that of a modified version where galaxies are shuffled among halos of the same mass. In all panels, for ease of comparison, the symbols connected by dashed lines represent the results for the stellar mass sample with n = 0.003 h³ Mpc⁻³. The level of galaxy assembly bias varies significantly across samples, redshifts, and number density, increasing or decreasing galaxy clustering by as much as ≃24%.