How Life Began: A Speculative Study in Modern Biology is a seven-chapter text that covers some broad and wide conceptions about biological life origin. The opening chapters deal with the significant biological research on comprehensive interpretation of the human body and the beginning of primal germinal existence of Homo sapiens. These chapters also look into the influence of heredity and environment on human origin. These topics are followed by a presentation of the idea that biological life is a universal phenomenon. The discussion then shifts to the evolutionary aspect of human life existence. The concluding chapters describe the concept of life struggle for existence and the associated idea of the species survival of the fittest. Biologists, evolutionists, and research workers who are interested in the issue of life beginning and existence will find this book invaluable.