Modern concepts as well as contributions associated with the field of zoology have been highlighted in this elaborative book. Unlike classical manuals on Zoology, this book does not present readers with a typical treatment of animal groups. As a result, some of them may be disappointed when referring to the index, specifically if they are looking for something regarded as standard. However, individuals interested in studying Zoology will not be disappointed since this book provides novelties on various topics that will help them to enhance their knowledge regarding animals. It is a compilation of information on several distinct topics associated with knowledge of animals. The information provided in this book represents current contributions in the field of Zoology. It elucidates a variety of research carried out in this discipline and provides novel data for consideration in future publications.