Contents -- Preface and Acknowledgments -- Our Changing Relationship with the Killer Whale -- The Development of Our Study -- Natural History of the Killer Whale -- Distinct Populations: Residents, Transients, and Offshores -- Different Lifestyles -- Dialects and Population Identity -- Population Parameters -- Resident Killer Whale Societies -- Definitions of Social Structure -- Watching Killer Whales -- Land-Based Whale Watching -- Vessel-Based Whale Watching -- Interpreting Whale Activities and Behaviours -- Does Watching Whales Bother Them? -- Catalogue of Resident Killer Whales -- The Naming System -- How Whales Are Identified -- Catalogue Organization -- Sex and Years of Birth and Death -- Northern Resident Community -- Southern Resident Community -- Catalogue -- Conservation Concerns and Future Prospects for Killer Whales -- Food Supply -- Environmental Contaminants -- Vessel Disturbance -- Population Status and Future Outlook -- Glossary -- Bibliography -- Other Resources -- Photographic Credits -- Sidebars -- Killer Whales as Nuisances -- Distinguishing Resident, Transient, and Offshore Killer Whales -- Distinguishing Males and Females -- Whale-Watching Tours -- How to Behave around Killer Whales -- Changing Features of Fins and Saddles -- Killer Whales, Ships, and Care-Giving Behaviour -- Orcinus orca: The Killer Dolphin -- Wanted: ID Photos and Observations -- Eavesdropping on Killer Whales -- Communication and Echolocation -- Genetic Testing: Shedding New Light on Killer Whale Biology.