1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18. And this is what a child's skull looks like before they lose all their baby teeth:
Facts and other observations culled from this thread and this thread.
Facts and other observations culled from this thread and this thread.