This edited volume records the critical historical developments in thermal physiology and makes them accessible to new and senior thermal biologists and scientists in related fields. Readers will discover how the discipline developed all over the world. Contributions from 14 different countries recollect all prominent discoveries, starting in the 18th century. Like other volumes of the Perspectives in Physiology series, this book reveals the people behind these discoveries. The authors also set the scenes in which the research was conducted in their countries. From geopolitical frameworks to new technologies and extraordinary personalities - this volume shows that scientific progress is influenced by many, often unforeseeable, factors. The history of thermal physiology not only is a story about individual outstanding scientists, but a testament for open collaboration and international comradery.