co-parent

noun 0.590

brood parasitism

noun 0.581

mothering

noun 0.581

allocentric

noun 0.575

fosterage

noun 0.569

brood parasite

noun 0.569

nurturant

noun 0.565

parenthood

noun 0.555

parental

noun 0.547

reciprocal altruism

noun 0.536

grandparenthood

noun 0.533

nannying

noun 0.532

parthenogenesis

noun 0.519

alloplastic

noun 0.517

babysitting

noun 0.517

surrogacy

noun 0.514

allopatry

noun 0.513

allostery

noun 0.510

altruism

noun 0.510

foster parent

noun 0.507

fostering

noun 0.507

iteroparity

noun 0.506

mother-bird

noun 0.501

surrogate father

noun 0.501