The work is divided into two parts. Part One marshals behavioral and morphological evidence to argue that humans evolved from other animals. Darwin shows that human mental and emotional capacities, far from making human beings unique, are evidence of an animal origin and evolutionary development. Part Two is an extended discussion of the differences between the sexes of many species and how they arose as a result of selection. Here Darwin lays the foundation for much contemporary research by arguing that many characteristics of animals have evolved not in response to the selective pressures exerted by their physical and biological environment, but rather to confer an advantage in sexual competition. These two themes are drawn together in two final chapters on the role of sexual selection in humans.

Library users are welcome to consult any of these books on Library premises. To reserve a book for consultation, just go to their catalogue entry on Discover while you are logged into your LSHTM account and follow the instructions underneath the heading “Get It.” You’ll receive an email when it’s available. However, please note that these books will need to be read within the Library and cannot be borrowed like most other resources.