Fig. 5.

One possible scenario for the evolution of the hominin foot. Note that this scenario posits that Homo habilis is more similar in its foot morphology to Australopithecus africanus than it is to A. afarensis. The only difference between the A. africanus foot and the H. habilis foot is that the talonavicular complex has changed from an ape-like morphology to a human-like morphology (Harcourt-Smith, 2002). This pattern is reminiscent of the similarity in the humerofemoral proportions in these hominins.