Figure 3.
Effects of male age and paternity assurance on postnatal care (mean ± s.e.m.). (a) Duration of male care (hours; n = 118). (b) Duration of female care (hours; n = 118).
Effects of male age and paternity assurance on postnatal care (mean ± s.e.m.). (a) Duration of male care (hours; n = 118). (b) Duration of female care (hours; n = 118).