Sahelanthropus and other early hominins shared some of the derived characters of humans. For example ,they had reduced canine teeth, and some fossils suggest that they had relatively flat faces. They also show signs of having been more upright and bipedal than other apes. One clue to their upright stance can be found in the foramen magnum is relatively far back on the skull, while in early hominins (and in humans), it is located underneath the skull. This position allows us to hold our head directly over our body, as appearently early homminins did as well. The pelvis, leg bones, and feet of the 4.4-million –year-old Ardipithecus ramidus also suggest that early hominins were increasingly bipedal (Figure 34.47).(we will return to the subject of bipedalism later.)