Md. Rifat Hossain Redhoy

Introduction: Dinosaurs, the colossal rulers of Earth's ancient realms, have captivated human imagination for centuries. Their colossal stature, diverse species, and sudden disappearance spark curiosity and fuel the quest to unravel the mysteries surrounding their existence and ultimate demise. In this article, we embark on a journey to explore the enigma of dinosaurs and delve into the theories explaining their extinction. The Reign of Dinosaurs: Dinosaurs, a diverse group of reptiles that once dominated terrestrial ecosystems, roamed the Earth for over 160 million years. These prehistoric giants varied in size, from the petite Microraptor to the colossal Argentinosaurus. The Mesozoic Era witnessed their reign, divided into the Triassic, Jurassic, and Cretaceous periods, showcasing the evolution and adaptation of these magnificent creatures. The Cataclysmic Event: One prevailing theory explaining the extinction of dinosaurs is the impact hypothesis. Scientists propose that a mas