Trivers 1974: asymmetric relatedness (parent r=0.5 to each offspring; offspring r=1 to self) creates evolutionary tension over investment. Observed in weaning conflict, sibling rivalry.
Trivers 1974: asymmetric relatedness (parent r=0.5 to each offspring; offspring r=1 to self) creates evolutionary tension over investment. Observed in weaning conflict, sibling rivalry.