Realm of the killer whales: Peering into the world of killer whales in the Pacific northwest, Pitcairn reveals both these enigmatic marine mammals and the rich habitat in which they live.Sperm whale oasis: Off the Azores in the vastness of the mid-Atlantic, Pitcairn manages to infiltrate a group of sperm whales-largest of the toothed whales- and to linger in their midst with his camera rolling.