You may not feel that your skeleton does very much. But without it you’d be a limp bag of protoplasm, unable to move. And while you may regard bones as rigid and inert, they are living tissue. 

Bones are also time capsules, preserving much of your personal history. Find out how evolutionary biologists, forensic anthropologists, and even radiation scientists read them.

And why won’t your dog stop gnawing on that bone?

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