The briefing
New findings on Neanderthal pelvic anatomy challenge the long-standing Obstetrical Dilemma Hypothesis, which posits a trade-off between bipedal walking and birthing large-brained babies. The research highlights pelvic sex differences and questions how human childbirth constraints evolved.
Original headline
Neanderthal hips challenge long-standing hypothesis of a trade-off between childbirth and bipedal walking