The hot debate right now is focused on the evolution of bipedalism in hominids. Was the common ancestor of chimps and humans functionally bipedal or arboreal? Of course, Lucy can't really answer the question with any confidence, but does finding adaptations for bipedalism so close the common ancestor indicate a bipedal common ancestor?
At the same time, australopithecines also have adaptations for tree climbing, most noticebly in the range of motion for the shoulder and adaptations in the wrist.
Edited by Taq, : No reason given.
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