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 1 7 |         which has two fins, by its flexion in a fluid makes up the
 2 9 |        there were no point at rest flexion and straightening would
 3 9 | straightening would be impossible. Flexion is a change from a right
 4 9 |            in all such changes the flexion or the straightening must
 5 9 |           point. Moreover, without flexion there could not be walking
 6 9 |       kinds of movements involve a flexion in the shoulders or in the
 7 9 |          consequence there must be flexion. For since a stationary
 8 9 | caterpillars), and undulation is a flexion; others by a telescopic
 9 9 |         jumping animals all make a flexion in the part of the body
10 9 |       These swim by substituting a flexion of the rest of their body
11 10|         makes a change of place by flexion and straightening, for all
12 10|   accordingly, even if there be no flexion in another member, there
13 10|            for example snakes, the flexion begins in the joints of
14 12|          stated above that without flexion in the legs or shoulders
15 12|           could progress, and that flexion is impossible except some
16 12|       backwards. And again, if the flexion were backwards, the placing
17 12|        foot forwards away from the flexion; whereas, with the flexion
18 12|         flexion; whereas, with the flexion forwards, the progression
19 12|        described. Moreover, if the flexion is like this, they are enabled
20 12|          forward. If, however, the flexion of the hind legs were forwards
21 12|    position of the belly); but the flexion being backwards, as in fact
22 12|         such ministrations. If the flexion were inwards it would be
23 13|            there are four modes of flexion if we take the combinations
24 15|            have this situation the flexion of the leg must be backwards,
25 16|           they must have had their flexion both forwards and backwards;
26 16|            reason for this kind of flexion is the number of their legs;
27 16|           the ground. However, the flexion of the limbs of all polypods
28 17|             obliquely, because the flexion is oblique; and with more