This book deals with the theme of creativity in the animal world, conceived as a basic function for adapting to specific situations and as a source of innovations and inventions. Creativity is a fundamental resource for the individual who always has a leading role in conduct. To explain creativity, the book focuses on the concept of animal subjectivity, providing a new explanatory model of behavior capable of overcoming the image of the animal moved by automatisms. This model does not use consciousness as a necessary condition, but is based: 1) on affective components, such as behavioral motives, and 2) cognitive, as tools used by the subject to carry out his purposes. Particular attention is paid to the learning processes showing the subjective character of the experience.