copulation, nesting, rutting, egg laying, estrous, estrus, oestrus, molting, oviducts, unmated, estrous cycle, breeding, foraging, manakin, moulting, eyespots, musth, oviposition, courtship, fru, asexual reproduction, nestlings, bowerbirds, woodcocks, mandrills, cuckoos, zebra finch, mantids, phoebes, diapause, anting, offspring, dimorphic, poult, calving, vocalisation, pheromones, cowbird, females, hermaphrodites, phalaropes, linnets, roosting, intraspecific, katydids, polyandrous, coitus, ovipositor, photoperiod, toms, redshank, dimorphism, swordtails, evolutionarily, denning, avians, fertilization, parturition, narwhals, lyrebird, catbirds, polygynous, prairie vole, ovulation, meadow vole, nightjars, killdeer, introgression, pupation, junco, vocalizations, goshawks, subadult, hyperphagia, amorous, melanistic, hatchling, bugling, ibises, migratory, precocial, springtails, siskin, passerines, spotted sandpiper, chicks, spermatogenesis, gyrfalcon, pollination, wolf spider, wagtails, sifaka, toadfish, cicada killer, tiger moth, chaffinches, larval, fledglings, redstarts, pelage, pipefish, hornbills, matings, pairing, fertilisation, instantiation, pairings, selection, spawning, choice, contact, application, i.e., impregnation, inbreeding, placement, commutation, enumeration, randomization, stimulation, response, taking, acquisition, cycling, gathering, monomorphic, radiosensitive, solving, activation, bonding, clonal, mendelian, substitution, target, welldefined

assortative mating, cross, crossbreeding, crossing, disassortative mating, hybridisation, hybridization, hybridizing, inbreeding, interbreeding, service, servicing

assortative mating, disassortative mating, eugenics, inbreeding, service, servicing

sex, sexual activity, sex activity

conjugation, coupling, pairing, sexual union, union