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Researchers determined that Lucy, an Australopithecus afarensis skeleton discovered in 1974, was a female based on several factors. Primarily, the pelvic structure was examined; females typically have wider pelvises to accommodate childbirth. Additionally, the size of the bones and overall stature suggested she was smaller than her male counterparts, which is consistent with sexual dimorphism in the species. These anatomical features provided strong evidence for her being a female.

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2mo ago

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