Explore the process of scientific inquiry and textbook development through a lecture on dinosaur ecology. Gain insights into evaluating and learning from scientific papers while examining the terrestrial ecosystem of the well-preserved Hadrosauridae dinosaur, Edmontosaurus annectens, from the Upper Cretaceous period. Delve into key findings and illustrations, including those on pages 115, 118, 119, and Figure 2 on page 514. Conclude with an introduction to reproductive ecology in dinosaurs.