Bipedalism
One of the key characteristics differentiating
hominid hominid from other apes is that hominid hominid walked
on two feet, that is, they are bipedal.
Bi d li Bipedalism result de in many anat il om ca
changes in hominids.
¾ The opening of the skull where the spinal cord
enters (foramen magnum) shifted forward, allowing
the spine to be more directly underneath the head.
¾ The hominid hominid pelvis became broader broader to support support the
additional weight.
¾ The lower limbs, used for
walking, became relatively
el td onga ed.