Figure 1.

Visual representation of the experiments. Following air exposure, N. pulcher recovered either with their own social group or alone (experiment 1) or they recovered in view of their own social group or a novel social group (experiment 2). The number of aggressive acts (tallied over a 5 min period) received by individuals during recovery is illustrated for individuals that recovered with their own social group (a); in visual contact with their own social group (b); or in visual contact with an unfamiliar social group (c). Values are means ± s.e.m. An asterisk indicates a significant difference from the pre-stressor value (see text for additional details). (Online version in colour.)