(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 10. Anterior views of the position of the hip (black inverted triangles), knee
(red circles), ankle (yellow squares), metatarsal (green triangles), and toe
tip (blue diamonds) for a single C. calyptratus moving on a level
perch (A) and a level treadmill (B), and a single D. dorsalis moving
on a level treadmill (C). Each panel is a composite of four strides, with
approximately 25 points per stride. The mean position traveled by the
mid-dorsal line was standardized to z=0.