Blue-Eyes first appears after Speckles witnesses One-Eye successfully kill a Therizinosaurus. She cautiously walks over to the dangerous Tyrannosaurus, hoping to share his catch. Angerly, One-Eye chases her off, as Speckles manages to steal a piece of meat behind them, and escape into a cave. As he looks up from his food, he sees Blue-Eyes standing there, surprising him. The two Tarbosaurus growl at each other over the meal, until Blue-Eyes takes it from Speckles, and proceeds to eat. Speckles notices that she is starving, and feels sorry for her. He then shares the meat with her. Over the years, the two form a close bond, and travel together. Five years later, One-Eye returns, and attacks Blue-Eyes while she and Speckles are hunting, near a tar pit. While she recovers, Speckles lures One-