The Evolution of Humankind.
Scientist Glen McBride speculates about the most important breakthroughs that led to the evolution of humankind from the apes; events such as the first time a prehistoric ape stood upright, used a tool, harnessed fire, or practised agriculture. He argues that these episodes has a profound effect on the development and prosperity of our ancestors.
In fifteen stories, McBride postulates on how such ground-breaking events might have occurred. Each story is followed by a scientific discussion in plain English arguing the importance of the episode and explaining the author's sometimes rather contentious interpretation of these events.