Animal behavior, ethology or behaviorism is a scientific field that studies the behavior of animals under normal circumstances. It includes topics like observational learning, habituation, imprinting, and associative learning, etc. This book aims to shed light on some of the unexplored aspects of animal behavior. Such selected concepts that redefine the field have been presented in it. This book is a valuable compilation of topics, ranging from the basic to the most complex theories and principles in the field of animal behavior. For someone with an interest and eye for detail, this text covers the most significant topics in this field. It will provide comprehensive knowledge to the students.