Mankind: The Story of All of Us tells how humans have evolved and survived over thousands of years. While climate has played a role in determining where people set up civilisations, people have developed tools and technology to overcome the obstacles that nature has presented. The story of human existence is complex, but it turns out all humans have a connection based on shared ancestry and the inner will to continue surviving.
Forces of nature have shaped the foods people eat. Physical forces have presented limitations to the movement of humans, but the shared desire of all humans to grow and expand has led to populations sprouting all over the globe. Civilisations have risen from the collective efforts of every living being that has ever existed. People that are born now are forever linked to those who came before them and those who have yet to be born.