Bone is a miracle. It’s a strong and adaptable building material that has existed for more than 500 million years of evolution. Perhaps no other component of the human body has such scientific and cultural significance. Bone is filled with life, and at the same time it is a well-known symbol of death. Brian Sweetin tells stories about bones with special charm and enthusiasm. In this book, he explains how our skeleton appeared, what functions it performs, and what our descendants will be able to learn about us when these amazing clusters of minerals and protein are all that remains of us.