MS of star-forming galaxies. The plot shows the logarithm of the SFR, log(SFR₁₀), versus the logarithm of the stellar mass, log(M_★). The SFR₁₀ refers to the average SFR over the past 10 Myr. Red points indicate galaxies with spectroscopic observations from DESI. The dotted black line shows the relation from Cole et al. (2025) at redshift 4.5–5. The solid black line corresponds to the relation from Curtis-Lake et al. 2021 (mock photometric samples of galaxies at z ≈ 5), the dot-dashed line the relation from Speagle et al. (2014), 64 measurements of the star-forming ‘MS’ from literature out to z ≈ 6), and the pink line the results from the Millennium Simulation (Springel et al. 2005). The dashed lines draw regions of constant sSFRs at values of −7 and −9.