ETG and passive galaxy fractions as a function of galaxy surface density in two mass bins: and . The small grey circles and error bars and the dashed line show the morphology-density relation at z ∼ 1 from Postman et al. (2005) and at lower redshift from Dressler (1980). The grey region shows the ±1 σ range of the CANDELS passive fraction. The morphology-density and passive density relation are already in place in both mass bins.