30 THE HISTOEY OF AXIMALS, [fl. n. the anus ; and by the lower, the parts from hence down- wards. In those animals which have feet the hind leg is the lower part of the body in point of size ; and in those without legs, the same relation is observed in their various kinds of tails. Such is the nature of perfected animals, but they differ in the development of their parts. Man in the young state has the upper part of his body greater than the lower ; but as he grows the proportion of his parts changes, wherefore also he is the only animal which does not move in the same way when young and when grown up, for at first a child crawls like a four-footed animal. 7. Some animals grow in the same proportion throughout, as the dog - others when they are first born have their upper part proportionally less than the lower, but as they approach maturity, the upper parts increase in size, as in the lophuri, for in these animals the part from the hoof to the haunch never grows after their birth. 8. There is a great difference in the teeth of animals, both among themselves and from the human type; all viviparous and sanguineous quadrupeds have teeth ; some have teeth in both jaws, which others have not; this is the first distinction. Those which have horns do not possess teeth in both jaws, for they have no front teeth in the upper jaw. There are others, as the camel, which, though it has no horns, has not teeth in the upper jaw. 9. Some animals have tusks like the boar, others have not ; some have pointed teeth, as the lion, panther, and dog ; the teeth of others have an even surface, as the ox and the horse. Animals with pointed teeth have their teeth fitting into each other ; no animal has both tusks and horns, neither those with pointed teeth nor any others. Most animals have their front teeth sharp, and their hind teeth flat ; all the teeth of the seal are sharp pointed, showing an approximation to the race of fishes, for all fishes have pointed teeth. 10. None of these genera have a double row of teeth. But, if we may believe Ctesias, there are some which have this peculiarity, for he mentions an Indian animal called marti- chora, which had three rows of teeth in each jaw ; it is as large and as rough as a lion, and has similar feet, but its ears and face are like those of a man ; its eye is grey, and its body red ; it has a tail like a land scorpion, in which there
