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5. Time line of Human evolution and Walking upright

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1. Walking upright may have helped this species survive in the diverse habitats near where it lived—including and

2. Walking upright helped them get around in diverse and cope with changing climates.

3. Australopithecus africanus walkedin a very similar way as modern men.

4. The wide area of bone just below this the knee joint in is a result of that stress.

5.Sahelanthropus may have walked on

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