How have reptiles evolved from ancient ancestors to the diverse array of species seen today? This book explores the evolutionary history of reptiles, from the earliest anapsids and diapsids in the Carboniferous period to the modern snakes, lizards, turtles, and crocodilians. It discusses their survival through mass extinctions, adaptations to various ecological niches, and the development of physical traits such as scales, cold-blooded metabolism, and egg-laying practices. The narrative examines the evolutionary links between reptiles and birds, highlighting the transition of certain dinosaur species into avian forms. By providing a comprehensive overview of reptilian evolution, the book showcases the adaptability and resilience of these creatures that have made them successful survivors over millions of years in changing environments.