![The evolution of the human pelvis: changing adaptations to bipedalism, obstetrics and thermoregulation | Philosophical Transactions of the Royal Society B: Biological Sciences The evolution of the human pelvis: changing adaptations to bipedalism, obstetrics and thermoregulation | Philosophical Transactions of the Royal Society B: Biological Sciences](https://royalsocietypublishing.org/cms/asset/5de54828-ca06-4d42-bd4e-5587b86af430/rstb20140063f03.jpg)
The evolution of the human pelvis: changing adaptations to bipedalism, obstetrics and thermoregulation | Philosophical Transactions of the Royal Society B: Biological Sciences
![Covariation between human pelvis shape, stature, and head size alleviates the obstetric dilemma | PNAS Covariation between human pelvis shape, stature, and head size alleviates the obstetric dilemma | PNAS](https://www.pnas.org/cms/10.1073/pnas.1420325112/asset/319e97db-2ddc-453c-8d07-49f3dc8639fc/assets/graphic/pnas.1420325112fig03.jpeg)
Covariation between human pelvis shape, stature, and head size alleviates the obstetric dilemma | PNAS
![12,100+ Pelvis Anatomy Stock Photos, Pictures & Royalty-Free Images - iStock | Sacroiliac joint, Skeleton, Sacrum 12,100+ Pelvis Anatomy Stock Photos, Pictures & Royalty-Free Images - iStock | Sacroiliac joint, Skeleton, Sacrum](https://media.istockphoto.com/id/1156326491/photo/male-hip-bones-and-ligaments-labeled-rear-view-on-white.jpg?s=612x612&w=0&k=20&c=OZbuf1UzkaBdhsuly6T4pNXBKzg6znHqlsfTG77dUZU=)