"Zoologia Regions polars Ecologia." . . . . . . . . "The Polar worlds" . . . . . . . . . . . "Compares the physical environments of the Arctic and Antarctic and the links between them. Describes the lives and inter-relation of the animal inhabitants."@en . . "The polar worlds" . "The polar worlds"@en . "Compares the physical environments of the Arctic and Antarctic and the links between them. Describes the lives and inter-relation of the animal inhabitants." . . . . . . . . . . . . "Regions polars" . .