How Did Robust Australopithecines Differ From Earlier Australopithecines?

How Did Robust Australopithecines Differ From Earlier Australopithecines? How did robust australopithecines differ from earlier australopithecines? Robust australopithecines had smaller front teeth. How do humans differ from apes? Humans use spoken language. In what way did the robust and gracile australopithecines differ most strikingly? Nevertheless, gracile and robust australopithecine species differ most notably in their