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'Astonishing' fossil ape discovery revealed - BBC News
Our ancestors may have always walked on two legs, 10-million …
Becoming Human: The Evolution of Walking Upright
A new ape species’s fossils may clarify the root of walking upright ...
Walking on two legs – bipedalism - The Australian Museum
Great ape walking kinematics: Implications for hominoid evolution
Great ape walking kinematics: Implications for hominoid evolution ...
How did humans learn to walk? New evolutionary study ... - ScienceDaily
Fossil ape hints at how walking on two feet evolved - Nature
Ancient ape offers clues to evolution of two-legged walking