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 1 4 |          in the body itself and so progress, like some footless animals (
 2 6 |     Accordingly, all animals which progress by the use of distinct members
 3 7 |          no Sanguineous animal can progress at more points than four,
 4 7 |           nature of anything so to progress at four points it must of
 5 8 |          either are better able to progress with even limbs or cannot
 6 8 |          limbs or cannot otherwise progress at all every animal which
 7 8 |         Centipede, can indeed make progress on an odd number of limbs,
 8 9 |       acute or will not be able to progress. For if one leg is at right
 9 9 |          Of limbless animals, some progress by undulations (and this
10 9 |       itself in a straight line to progress, and now is hooped; it straightens
11 9 |         flying and swimming things progress, the one straightening and
12 10|      straightening, for all things progress by pressing upon what being
13 12| Sanguineous animal with feet could progress, and that flexion is impossible
14 14|          direction they are making progress. For in direction this animal
15 15|            since when they move to progress the natural beginning of
16 15|         all I mean that make their progress in water by dint of organs
17 16|          all polypods; they do not progress forwards except in the sense