Problem
i. Compare the shape of the pelvis between humans, chimps, and Au. Afarensis. How are they different, and how do the features in the two hominins allow bipedal walking?
ii. What other parts (besides the pelvis) of the skeleton have been reshaped for bipedal locomotion and might be useful in identifying a fossil as being hominin? Describe the changes that have occurred.
iii. How are humans and Au. afarensis similar? Different? What does this suggest about bipedality in Au. afarensis?
iv. List three anatomical features suggest that Paranthropus ate a diet of tough, fibrous plant material? What is the likely diet of Australopithecine species?