What can ancient bones tell us about human ancestors?

The ancient bones can reveal a lot about the human ancestors, the evolution patterns, age structure, physical appearance, even way of life. The bones are the fossil findings that give us the opportunity to reconstruct our ancestor, as to how they were looking, how were they moving, how were they living, and what were the causes about it all, and also see step by step how they were evolving and how the evolution made us, the modern humans.