The study of evolution for animal behavior owing to the ecological factors is called behavioral ecology. This book includes some of the vital pieces of work being conducted across the world, on various topics related to behavioral ecology and its multi-faceted aspects. It strives to provide a fair idea about this discipline and to help develop a better understanding of the latest advances within this field. The book sheds light on different dimensions of behavioral ecology which compel the animals to behave in a particular way like competition for resources, sexual selection, etc. The extensive content of this book provides the readers with a thorough understanding of the subject. It is appropriate for students seeking detailed information in this area as well as for experts.