Once upon a time, in a green and gentle forest, there lived a small dinosaur named Youngosaurus. Youngosaurus lived with his mother underneath a tree, the only tree with birds. Youngosaurus was smaller than most other dinosaurs but had a big heart and a curious mind. Every morning, Youngosaurus would watch his mother march into the distant bushes to collect food. Some mornings, Youngosaurus could see her collecting leaves, and on other mornings, he could not. The thought of watching his mother disappear was both frightening and intriguing for Youngosaurus. What magical trip could she be taking on her own? Youngosaurus was not allowed to leave from under the tree, as it was much too dangerous. One morning, Youngosaurus saw his mother disappear into the shadow of the trees and bushes and wanted to follow. But he became frightened. What if she never came back!