The conversation between human and AI assistant.
Is it true that babies are born without kneecaps? If so, why?
That's interesting. Can you tell me more about how a baby's skull develops?
Sure. The skull is made up of several bones that are joined together by fibrous connective tissue called sutures. These sutures allow the bones to shift and move during birth, and also allow for expansion of the skull as the baby's brain grows. Over time, the sutures fuse together and the skull becomes more rigid.