How Can Babies At Birth Have 350 Bones And Adults Have 206 Bones?

Babies have smaller, separate bones that fuse together to make a larger bone (ie: The soft spot on their head, their skull isn't fully fused together, it's separate bones until they connect to make one). Therefore, when the bones fuse together, the number of bones decreases.

Babies are small and bones are small and not attached to them inside so when they beome a grown up,there bones attach