6A highly challenging collection of essays by eminent scientists on the theme of integrative approaches to physiological questions, this book discusses the changing boundaries between different disciplines in modern experimental biology. The contributors are experts in the fields of integrative physiology, cellular evolution, control mechanisms, endocrinology, and behavioral biology. Conceived as a tribute to the 1993 International Congress of Physiological Sciences, this important work matches the immense challenge of modern biological science at the end of the twentieth century.