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Question
How would you justify that Australopithecus was a human ancestor?
Solution
Australopithecus averaged about 120 cm tall, and the cranial capacity ranged from 450-600 cm3. It had a low forehead, protruding face, lack of chin and low brain capacity. Teeth resembled man because the dental arc was a smoothly rounded parabola, and a simian gap was absent which justifies a human ancestor.
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