Sect. 79. For the end of conjunction, between male and female, being not barely procreation, but the continuation of the species; thisconjunction betwixt male and female ought to last, even after procreation, so long as is necessary to the nourishment and support of the young ones, who are to be sustained by those that got them, till they are able to shift and provide for themselves. This rule, which the infinite wise maker hath set to the works of his hands, we find the inferior creatures steadily obey. In those viviparous animals which feed on grass, the conjunction between male and female lasts no longer than the very act of copulation; because the teat of the dam being sufficient to nourish the young, till it be able to feed on grass, the male only begets, but concerns not himself for the female or young, to whose sustenance he can contribute nothing. But in beasts of prey the conjunction lasts longer: because the dam not being able well to subsist herself, and nourish her numerous off-spring by her own prey alone, a more laborious, as well as more dangerous way of living, than by feeding on grass, the assistance of the male is necessary to the maintenance of their common family, which cannot subsist till they are able to prey for themselves, but by the joint care of male and female. The same is to be observed in all birds, (except some domestic ones, where plenty of food excuses the cock from feeding, and taking care of the young brood) whose young needing food in the nest, the cock and hen continue mates, till the young are able to use their wing, and provide for themselves.