. . . "Bildband" . . . "An in-depth introduction to a popular species of marine mammal and the various habitats in which it can be found." . . . . "Killer whales" . "Killer whales of the world : natural history and conservation" . "Killer whales of the world : natural history and conservation"@en . . . . . . . "Schwertwal." . . "Schwertwale." . .