Written in Bone - Male or Female? Science... for the WIN!

A skeleton's overall size and sturdiness give some clues. Within the same population, males tend to have larger, more robust bones and joint surfaces, and more bone development at muscle attachment sites. However, the pelvis is the best sex-related skeletal indicator, because of distinct features adapted for childbearing. The skull 

also has features that can indicate sex, though slightly less reliably.

http://anthropology.si.edu/writteninbone/male_female.html

Written in Bone - Male or Female? - Smithsonian Institution anthropology.si.edu Bone Basics An Inside Look at Bone Young or Old? Male or Female? Ancestry Human or Non-Human? How do investigators and scientists tell if a bone