Explore the fascinating question of mammalian and dinosaur size differences in this 45-minute lecture from the Royal Tyrrell Museum Speaker Series. Join Dr. Jessica Theodor, Associate Professor in the Department of Biological Sciences at the University of Calgary, as she delves into the intriguing topic of "Being Giant: Why are mammals not as big as dinosaurs?" Discover the biological and evolutionary factors that have influenced the maximum size of mammals compared to their prehistoric counterparts, and gain insights into the complex interplay of physiology, ecology, and environmental constraints that shape animal body size across different taxonomic groups.