Means "Southern Ape". 1. They did not use stone tools 2. Very short; 3-4 ft. tall 3. Their brains were the size of oranges
What I can infer about the Australopithecus is that they were the most ape-like out of all our ancestors because they were the earliest ancestors (3,999,997,982 yrs. ago.) and their pelvic bone is crooked, so it shows they didn't stand completely upright.
Sources: Becoming Human video, Australopithecus: Definition, Characteristics & Evolution
