sentence: Babies are born through the space between the three bones of a woman's pelvis.
sentences_before: However, the wider hips are needed to give birth.
sentences_after: So is doubtful to call this a 'secondary' characteristic, except so far as the width helps attract mates. Breasts are also essential, but in humans they are much larger in proportion to other mammals, and they do serve to attract males.
concept_name: baby
headings: Secondary sex characteristic
categories: Sexuality