Australopithecus Africanus Human-like and ape-like features bipedal being indication of adaptation to climbing in the shoulders and hand bones Africanus had not created tools diets similar to chimpanzee sexual dimorphism is prevalent Males at 4 feet 6 inches females at 3 feet 9 inches expansion of cheek teeth increased jaw size powerful chewing Australopithecus Africanus Reflective Morphological variation