Coco the koala and her friend Wally the kangaroo, searching for items to turn into instruments, are forced to seek shelter from a thunderstorm in a cave where they find other animals who join them in making wonderful music.
Since Mama is not available to cuddle all day, Coco the koala wanders off and tries to be like the other animals, only to find she does not share their skills.
A survey of the characteristics, habits, and natural environment of animals from all over the world. Also introduces the scientific grouping and classification of animal life.
When the Animorphs discover some strange happenings in the woods behind Cassie's house, they must stop Visser Three before he can destroy Ax's feeding grounds.