Neanderthal hips challenge long-standing hypothesis of a trade-off between childbirth and bipedal walking
A new study of Neanderthal pelvis fossils challenges the 'Obstetrical Dilemma Hypothesis,' which suggests a trade-off between bipedal walking and childbirth. Researchers found that while Neanderthal pelvises differed from modern humans, their birth canals did not hinder efficient movement.
Why it matters
This research provides new insights into human evolution and corrects long-standing scientific assumptions about how our ancestors adapted to physical demands.
edited by Gaby Clark , reviewed by Robert Egan
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Add as preferred source Virtual reconstructions of the Neanderthal pelvises of a 1.5-year-old infant from Dederiyeh Cave, Syria (left), and a young adult female from Sima de las Palomas de Cabezo Gordo, Spain (right), with transparent age- and sex-matched modern human pelvises superimposed. Credit: Marcia Ponce de León and Christoph Zollikofer The most prominent difference between human male and female skeletons is the pelvis, which anthropologists often use to determine the sex of ancient remains. Scientists have long believed the human pelvis evolved mainly as a compromise between walking on two legs and giving birth to large-brained babies. This idea is known as the Obstetrical Dilemma Hypothesis.
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