And when perchance, in mingling seed with his, The female hath o'erpowered the force of male And by a sudden fling hath seized it fast, Then are the offspring, more from mothers' seed, More like their mothers; as, from fathers' seed, They're like to fathers. But whom seest to be Partakers of each shape, one equal blend Of parents' features, these are generate From fathers' body and from mothers' blood, When mutual and harmonious heat hath dashed Together seeds, aroused along their frames By Venus' goads, and neither of the twain Mastereth or is mastered. Happens too That sometimes offspring can to being come In likeness of their grandsires, and bring back Often the shapes of grandsires' sires, because Their parents in their bodies oft retain Concealed many primal germs, commixed In many modes, which, starting with the stock, Sire handeth down to son, himself a sire; Whence Venus by a variable chance Engenders shapes, and diversely brings back Ancestral features, voices too, and hair. A female generation rises forth From seed paternal, and from mother's body Exist created males: since sex proceeds No more from singleness of seed than faces Or bodies or limbs of ours: for every birth Is from a twofold seed; and what's created Hath, of that parent which it is more like, More than its equal share; as thou canst mark,-- Whether the breed be male or female stock.