Handbook of Hormones: Comparative Endocrinology for Basic and Clinical Research collates fundamental information about the structure and function of hormones from basic biology to clinical use. The handbook offers a rapid way to obtain specific facts about the chemical and molecular characteristics of hormones, their receptors and signalling pathways, and the biological activities they regulate. The evolution of hormones and gene families is also covered both in the text and in online ancillaries. Users will find simple and visual ways to learn key molecular information. Chapters and online ancillary resources integrate additional sections, providing a comparative molecular, functional, and evolutionary consideration. Provides the only single resource available with concise, yet informative descriptions of hormones in vertebrates, invertebrates, and plants Presents hormones in groups according to their origin, so that readers can easily understand their inter-relation Includes comparative information on the structures and functions of hormones enabling readers to understand both general and specific actions in and across species Ancillary website hosts additional information, including sequence data, comparative data, figures, and tables