Evolution of the human pelvis

Brain size has a strong effect on human hip bones. The shape of human hip bones results from a compromise between walking on two legs and giving birth to large-brained babies.Humans need narrow hips to walk on two legs, but they also need wide hips to have babies with big brains. This problem is known as the obstetrical dilemma.

Walking Upright The Smithsonian Institution's Human Origins Program

How the pelvis, and not bipedalism, gave humans their narrow hips

Birth, obstetrics and human evolution - Rosenberg - 2002 - BJOG

Evolution of the human birth canal - ScienceDirect

Rare fossil find sheds light on evolution of women

Comparison of the birth mechanism in chimpanzees (top) and modern

Sex differences in the pelvis did not evolve de novo in modern

Where do the sex differences in the human pelvis come from?

PDF] Sexual dimorphism in the human pelvis : Testing a new

Pelvis Anatomy (Chapter 1) - The Evolutionary Biology of the Human

Schematic views and pictures of an ape ' s pelvis ( first line

Pondering Pelvic Evolution