The nearly columnar limbs of elephants are very different from the more flexed, spring action limbs of running mammals and birds.
Paul
Gregory
G
D000818:Animals; D001696:Biomechanical Phenomena; D001717:Birds / Q000502:physiology; D004606:Elephants / Q000033:anatomy & histology / Q000502:physiology*; D005121:Extremities / Q000502:physiology*; D005684:Gait / Q000502:physiology*; D007596:Joints / Q000502:physiology*; D008124:Locomotion / Q000502:physiology*; D013045:Species Specificity