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Fig. 7. A Hildebrand gait plot for the walking gait of D. rotundus (red)
and the single gait of M. tuberculata (blue). Duty factor is the
percent of the stride cycle for which the feet were in contact with the
ground, averaged for all four limbs in a stride cycle. Limb phase is the
percent of the stride cycle that elapsed between left hindlimb footfall, and
left forelimb footfall. The shaded area encloses 1178 symmetrical gait plots
from 156 genera of tetrapods (see
Hildebrand, 1985).