Pity is viewed as a function of two classes of perceived stimulus features and their interaction: the extent to which a person (when still healthy and nonsuffering) is perceived as vulnerable to physical harm, and the perceived intensity of his or her current suffering. Consistent with this view, Experiment 1 (N = 141) showed that participants' pity reactions to photographs of persons expressing pain were influenced by age-related, sex-related, and postural vulnerability cues. Experiment 2 (N = 258) manipulated both target's vulnerability by varying the muscularity of the same adult male stimulus and the intensity of suffering. As predicted, an interaction of vulnerability and suffering was found. Implications for the study of helping behavior are discussed. Copyright © 2001 John Wiley & Sons, Ltd.