Local density profile of galaxies around groups as a function of the normalised group-centric distance. Left upper panel show the local density profiles for fossils and normal systems identified observationally (see Table 1) while right upper panel show the profiles for Fossils and ΔM₁₂ < 0.5 mag groups in the MS when introducing a brighter cut-off in the R-band absolute magnitude. Error bars are the 35th and the 65th percentiles in the local density distribution at each distance bin. Lower panels show the corresponding ratios of local density profiles in each case.