When Buzz and Liz visit the zoo, their pets Fly Guy and Fly Girl go looking for food, and find the Creatures of the Night exhibit, where they see animals that would like to eat them.

When Fly Guy meets Fly Girl, he is amazed and smitten.

Buzz, Fly Guy, Liz, and Fly Girl meet a boy a named Carlos in the park, but Carlos has a pet lizard with a taste for flies--so it looks like this is a friendship that is doomed from the start.

Buzz y Liz van al zoológico con sus mascotas, Hombre Mosca y Chica Mosca. No sospechan que algo terrorífico esta a punto de suceder... ¡GLUPZ! ¡GLUPZZZ! Con una historia atractiva e ilustraciones divertidas, la popular serie de Tedd Arnold es perfecta para lectores principiantes. When Buzz and Liz visit the zoo, their pets Fly Guy and Fly Girl go looking for food, and find the Creatures of the Night exhibit, where they see animals that would like to eat them.