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Tuesday, November 18, 2008

Human ancestors born big brained

A new Homo erectus fossil suggests that females had large, wide pelvises in order to deliver large-brained babies.

"Proportionally her hips are wider than those of modern humans," he says.

A comparison of modern human and earlier pelivises (S.Simpson Case Western Reserve University)
Pelvis size indicates how large the newborn's head could be.

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