Every human and animal has behavioural characteristics which are affected by its environment in one way or another. Behavioural studies refers to the study of the interactions animals and humans have with their surroundings. The subjects which contribute majorly to behavioural science are cognitive science, psychology, psychobiology, etc. This book is a valuable compilation of topics, ranging from the basic to the most complex theories and principles in the field of behavioural science. The topics covered in this book offer the readers new insights in this field. This book is an essential guide for both academicians and those who wish to pursue this discipline further.