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 1 1 |           Again, why do quadrupeds move their legs criss-cross?~
 2 2 |        moved; it is not thought to move itself, but to be moved
 3 3 |         change their position some move with the whole body at once,
 4 3 |            jumping animals, others move one part first and then
 5 3 |          nothing without parts can move itself in this way, for
 6 4 |         the right, for they do not move in the direction of the
 7 6 |             in order to be able to move as a whole while one part
 8 7 |         the severed parts, and can move in the same way as before
 9 7 |         most naturally are made to move at two or four points, and
10 7 |         are no exception. They too move by dint of four points,
11 7 |         this is evidence that they move themselves like the quadrupeds,
12 7 |      snakes swim precisely as they move on the ground). Others have
13 7 |          for example all the eels, move with fewer flexions in a
14 8 |           Sanguineous creature can move itself at more than four
15 8 |       those which only jump and so move from place to place do not
16 8 |         fall in endeavouring so to move.~Polypods however, like
17 9 |            is, indeed, possible to move oneself even if the leg
18 9 |            knee, but would have to move like men in the wrestling
19 9 |       undulating animals could not move themselves; when the flexure
20 10|         when they walk, be said to move at four points? Now we did
21 10|         not say that all Sanguinea move at four points, but merely
22 12|          body on it, and when they move forward the leg which has
23 12|      backwards, and the shin would move the foot forwards away from
24 12|           lead off first when they move, and are also in the forepart
25 14|          given. But the hind limbs move criss-cross with the fore
26 14|            after the off fore they move the near hind, then the
27 14|          as it is, all horses that move in this way soon begin to
28 14|           limbs and the hind limbs move in this separate way. Again, (
29 14|            then it is necessary to move in one or other of these
30 14|            satisfactory, they must move criss-cross; for moving
31 14| consecutive pairs of legs the hind move criss-cross with the forelegs;
32 14|          moving slowly. Even crabs move in this way, and they are
33 14|        polypods. They, too, always move criss-cross in whichever
34 14|            limbs, for its eyes can move themselves obliquely, and
35 14|        exception but in this sense move forwards.~
36 15|         quadruped, since when they move to progress the natural
37 17|            more than one limb, and move obliquely; obliquely, because
38 19|         misshapen. Now molluscs do move, but move in a manner contrary
39 19|          Now molluscs do move, but move in a manner contrary to