"Describes, in text and illustrations, the many different tasks performed by keepers at the National Zoo and the interrelationship between them and the animals they care for."@en . "Describes, in text and illustrations, the many different tasks performed by keepers at the National Zoo and the interrelationship between them and the animals they care for." . . . . . . . . . . . . "Keepers and creatures at the national zoo"@en . "Keepers and creatures at the National Zoo" . . . "Juvenile works"@en . "Juvenile works" . . .