The Evolution of the Spine

 When I was a smallgirl my mother told me that i was born from a tree.
That like a tree I would grow and change. She said that it happened thousands of years ago; that the leaves had turned to wood, that the wood had grown, twisted and sproute new leaves and over time those leaves had fallen and the wood turned to bone.
The bone which supports us.She said that every one of us has evolved from a tree. That we all have a tree inside us, our backbone.