The book aims to shed light on some of the fundamental aspects of zoology. It talks about the various techniques used in this study and its different applications. Zoology, as a part of biology, studies the evolution, classification, embryology, structure, and behavior of all living and extinct animals. It also lays focus on the interaction between the animals and their environment. This book is a compilation of chapters that discuss the most vital concepts in the field of zoology. This textbook, with its detailed analyses and data, will prove immensely beneficial to graduates and post-graduates involved in this area. Those with an interest in this field would find this text helpful.