“The hip is a ball-and-socket joint where the thigh bone's femoral head fits into the acetabulum of the pelvis.”

“To help achieve this position, contract your lower abs and tilt your pelvis forward.”

“Tighten your abs and glutes, keeping your pelvis down, and lift one leg off the floor.”

“A randomized controlled trial showed that radiographic pelvimetry is not able to reliably predict the route of delivery.”

“Not enough evidence is available to support the use of x-ray pelvimetry in patients whose fetuses have cephalic presentations.”

“Radiographic pelvimetry alone as a predictor of dystocia has not been shown to have benefit and, therefore, is not recommended.”

“Here are reptiles with bat-like wings, and others with bird-like pelves and legs adapted for bipedal locomotion.”

“Two key paleontologic markers of this lineage are pelves compatible with bipedality and braincase size.”