CHAP. 84. (64.)—THE POSITION OF ANIMALS IN THE UTERUS.
All those animals that are viviparous produce their young
with the head first, the young animal about the time of yeaning
turning itself round in the womb, where at other times it lies
extended at full length. Quadrupeds during the time of gestation have the legs extended, and lying close to the belly;
while, on the other hand, man is gathered up into a ball, with
the nose between the knees. With reference to moles, of
which we have previously1
spoken, it is supposed that they
are produced when a female has conceived, not by a male, but
of herself only. Hence it is that there is no vitality in this
false conception, because it does not proceed from the conjunction of the two sexes; and it has only that sort of vegetative existence in itself which we see in plants and trees.
(65.) Of all those which produce their young in a perfect
state, the swine is the only one that bears them in considerable numbers as well; and, indeed, several times in the year a thing that is contrary to the usual nature of animals with a
solid or cloven hoof.