As a discipline, evolutionary biology integrates the study of evolution and the principles of biology. It has contributed significantly towards understanding of anatomy and physiology of a multitude of species. This book has been designed for those who want to delve into an advanced study of evolution of life on earth. Also included in the book is a detailed explanation of concepts like molecular genetics, speciation, heritability, etc. It also contains latest studies which will assist the reader in developing a sound understanding of this field.