I know for a fact that there are bones in our feet and hands that are distinctly separate bones in children, but they fuse into one as we grow into adulthood. I think there are some in the spine and skull that do the same thing as well!
Reading that forensic anthropologist latest book - they fuse together I'm thinking.
Yea, that's it, what Ginger and Froggie said!
Guess that explains why they're so flexible!
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