'On the Movements and Habits of Climbing Plants' is a book by Charles Darwin. Following the 'Origin of Species', Darwin set out to produce evidence for his theory of natural selection. As such, Darwin spent much time studying plants to achieve this aim. This work is subdivided into chapters concentrating on a particular type of climber which he divided into four main classes. In this volume, however, Darwin concentrates on the two main classes, the twining plants and the leaf climbers (divided into two subdivisions: leaf climbers and tendril bearers).