Radii of the observed planets as a function of equilibrium temperature. The black points mark the group of inflated Saturns discussed in the text (R_pl ≥ 10 R_⊕), and the green points are planets with 6 ≤ R_pl < 10 R_⊕ and T_eq < 1000 K. All other planets are marked in gray. The dashed red line shows the fit to the black points, and the dashed blue line shows the fit to these planets assuming the exponent obtained for the inflated hot Jupiters (Laughlin et al. 2011).