The domestic rabbits, like all other domestic animals, vary in colour; white, black, spotted, and grey, are, however, the only colours which properly belong to Nature. The black rabbits are the most scarce. The wild rabbits are all of a greyish brown, which is also the predominant colour among the tame ones; for in every litter we constantly find brown rabbits, even though the old ones were both black or both white, or the one white and the other black. It is seldom that more than one or two will resemble such parents, whereas the brown rabbits, though domestic, seldom produce any but of their own colour, and it is, as it were, by chance, if they bring forth white, black, or mixed ones. These animals are capable of engendering by the age of five or six months. It is asserted they are constant in their amours, and that they usually attach themselves to a female which they never forsake. The latter is always ready to receive the male; she goes with young 30 or 31 days, and brings forth from 4 to 8 at a time. Like the doe hare she has a double matrix, and consequently may produce at two different times. It appears, however, that super-foetations are less frequent in this species than in that of the hare, which is perhaps owing to the females being more constant, and because they copulate less out of season. A few days before bringing forth they dig a fresh burrow, not in a straight line, but in a crooked direction, at the bottom of which they make an excavation; after which they tear a quantity of hair from off their bellies, and with it make a bed for their little ones. For the first two days they never quit them; they never stir abroad but when forced by hunger, and then return as soon as they have satisfied their appetite, which they do amazingly quick. Thus they tend and suckle their young for more than six weeks, during which time the buck has no knowledge of them, for he never enters the burrow dug by the doe; and she frequently, when she leaves her little ones, stops up the entrance to it with earth saturated with her own urine. But when they begin to come to the mouth of the hole, and to eat groundsel, and other herbs, which the mother picks out, he then begins to know them; he takes them between his paws, endeavours to smooth their hair, and licks their eyes. Each, in succession, partakes equally of his cares; at which time the mother bestows many caresses upon him, and generally proves with young a few days after.