Small, croaking chirps emanated from a tidy pile of mounded vegetation. A huge hulking dinosaur raised its bony skull to investigate and plodded to the mound. With a careful nudge, the dinosaur, a Maiasaura, uncovered her hatchlings with her wide duckbill-like nose. The chirps grew louder and louder as the first hatchling’s brothers and sisters emerged as well. What once were 30 large eggs had become a group of hungry dinosaurs imploring their mother for a meal.