The interaction of neutral evolutionary processes with climatically-driven adaptive changes in the 3D shape of the human os coxae.Differences in the breadth of the pelvis among modern human populations and among extinct hominin species have often been interpreted in the light of thermoregulatory adaptation, whereby a larger pelvic girdle would help preserve body temperature in cold environments while a narrower pelvis would help dissipate heat in tropical climates. 
THERM