Fig. 3: Relationship between the total numbers of offspring weaned per nest and the average PVN oxytocin concentration of sister dyads, according to whether or not the sister dyads reared young communally.
From: Egalitarian cooperation linked to central oxytocin levels in communal breeding house mice
Subjects were from two experiments with independent manipulation of access to protected nest sites and outgroup competition. Higher average PVN oxytocin concentration of sister dyads was associated with a greater total number of weaned offspring when females cooperated to rear offspring in a communal nest (‘Communal nest’, red, solid line) but not when offspring were reared by a single female (‘Single nest’, blue, dashed line). See Table 2 for statistical analysis.
