Just like her fellow dinosaur friends, Elsa was retrieved by Captain Neweyes' time machine aircraft and fed Brain Grain cereal, becoming intelligent and friendly in the process. She is first seen eating some hot dogs with her friends, Woog the Triceratops and Dweeb the Parasaurolophus, when Rex the Tyrannosaurus Rex, another dinosaur fed Brain Grain, shows up and introduces himself. Elsa politely greets Rex, telling him she is delighted and enchanted to make his acquaintance. She also reveals that she once laid an egg after Woog spilled the beans about it, making her initially angry, but then admits that she did and was embarrassed about it.