Fig. 6. Comparison of hind limb postures at touchdown and lift-off among quadrupedal primates and other mammals. Body masses range from 100 g (mouse lemur and shrew-like opossum) to 20 kg (dog) and 23 kg (baboon). Stick figure drawing data were compiled from Muybridge (1957), Jenkins (1971), Jenkins and Camazine (1977), Goslow et al. (1980), Meldrum (1991), Kuhtz-Buschbeck et al. (1994), Schilling and Fischer (1999), Fischer et al. (2002) and Schmitt and Lemelin (2004).