This book provides comprehensive insights into the field of ecological conservation and endangered species. It also focuses on the interrelation between the two. Species of plants and animals at the risk of extinction are put under the bracket of endangered species. This book discusses the fundamentals as well as modern approaches of conservation and preservation of the ecosystem. It aims to highlight the different methods to ensure protection of endangered species. This book aims to equip students and experts with the advanced topics and upcoming concepts in this area in a comprehensible and lucid manner. The book studies, analyses and upholds the pillars of conservation of endangered species and its utmost significance in modern times. It is a complete source of knowledge on the present status of this important field.