This memoir details the ups and downs of a life in science, as well as the pleasures of life in Europe, Japan, and Africa. Alfred Prince describes the importance of his many friends in contributing to his education, successes in research, and pleasure in life. He also describes the enemies who made life difficult. A major portion of the book concentrates on the nature of chimpanzees, which have played such an important role in Dr Prince's research. The relationship between these near human animals and man is extensively explored. Finally, Prince speculates on the creation of a chimp-human hybrid, MANZEE, in the hope that this offspring could cast further light on the relationship between these two closely related animals.