Australopithecine vs apes 2-2

Bipedalism. Mastoid process. Pelvis. Legs. Locomotion knuckle walking or ground walking versus bipedalism. Curves in the spine. Broad and wide pelvis.

Cranial capacity just higher

Areas of skull associated with speech site frontal lobe temporal lobe developed than apes. No sagittal crest

Robustus has simian shelf and sagittal crest. Less parabolic dental arcade

Supra orbital ridge bigger in apps.

Forward placement of foramen Magnum.

Tool culture possibly advanced