Question

Is there one particular measurement that seems to always show

Answer 1

Answer:

Yes. The pelvis.

Explanation:

Female pelves are larger and wider than male pelves and have a rounder pelvic inlet. Male iliac crests are higher than females, causing their false pelves to look taller and narrower. This wider pelvis is an adaptation for childbirth. You can visually differentiate between a pelvis that belong to a male or female.