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Fig. 4. Mean angular movements of intervertebral movements of the pika Ochotona
rufescens in the gallop (A; N=5) and the gray short-tailed
opossum Monodelphis domestica in the half-bound (B; N=6).
The different presacral intervertebral joints (PS) are indicated by different
colors. The footfall pattern of the hindlimbs is indicated by the ground
contact duration (stance phase) on the top of each diagram.