2) Based on the dental traits that you scored for the gracile Australopiths and the robust Australopith P . boisei, what types of foods do you think they may have eaten? Why do you think so? 3) List some traits of the os coxa (one half of the pelvis), the femur, and sacrum of A . afarensis ("Lucy"). What might these traits tell you about how this early hominin may have moved throughout its environment? 4) Look at the hand and foot of Ardipithecus ramidus ("Ardi"). Based on the traits that you see, was "Ardi" a habitual biped (meaning it walked on two legs 365 days of the year)? If not, what might the mosaic of traits tell you about how Ardi moved throughout its environment..