How come young children have more bones than adults

Question: How come young children have more bones than adults
- Keywords:
  adult,
  bone,
  children
Asked by Cheesers77 to Áine, Ciarán, Eoin, Lydia, Victoria on 20 Nov 2014.
- Lydia Bach answered on 20 Nov 2014:
  
  Heya,
  
  That’s true, babies have more bones than adults, because new borns have around 300 or so bones, many of which are made of mostly of cartilage, which turn into bone as the baby grows.
  
  Babies have more and squishier bones because to be naturally delivered babies needs to fit through the birth canal, so have to be a little compressible.
  Bones in the head of a baby for example fuse in the month after birth, but they are born with a cone shaped head because the bones of the skull are not fused, allowing it to bend and become narrow enough for birth.
  By adulthood, the skeleton has just 206 bones.

Question: How come young children have more bones than adults