Know her ass from his elbow

Sometimes when you’re watching a cop show on tv the coroner, upon examining a skeleton, will say to the cop, “Well, the victim was female as you can tell by the ***** of the pelvic bone.” To which I always respond internally, “I can’t tell, you bastards! Show me!” So here it is: both skeletons have those looping bones at the bottom of the pelvis. The loops of the female (against the white background) seem to flare out more than the male's, seemingly "out of the way" for pushing out other humans. The female pelvis is also wider and shallower.