Discover the remarkable life story of Corythosaurus casuarius, the helmet-crested hadrosaur whose hollow crest likely produced deep, echoing calls across ancient wetlands. From its earliest days as a fragile hatchling, Corythosaurus faced constant danger, relying on the protection of the herd to survive. As it grew, it learned to use sound and body language to communicate, navigate long seasonal migrations, and stay alert to approaching threats. Reaching adulthood, this dinosaur became a confide