Abundance Estimation; Aerial Behavior; Age Estimation; Aggressive Behavior; Albinism; Amazon River Dolphin; Ambergris; Antarctic Fur Seal; Antarctic Marine Mammals; Archaeocetes, Archaic; Arctic Marine Mammals; Atlantic Spotted Dolphin; Atlantic White-sided Dolphin; Australian Sea Lion; Australian Snubfin Dolphin; Baculum; Baiji; Baikal Seal; Balance; Baleen; Baleen Whales (Mysticeti); Baleen Whales, Evolution; Barnacles; Basilosaurids and Kekenodontids; Beaked Whales, Overview; Bearded Seal; Behavior, Overview; Beluga Whale; Berardius Beaked Whales; Biogeography; Biotelemetry; Blubber; Blue Whale; Bones and Teeth, Histology of Bottlenose Dolphin, Tursiops aduncus, Indo-Pacific bottlenose dolphin; Bottlenose Dolphin, Tursiops truncatus. Common bottlenose dolphin; Bottlenose Whales; Bowhead Whale; Bow-riding; Brain; Breathing; Bryde's Whale; Burmeister's Porpoise; Bycatch; California, Galapagos and Japanese Sea Lions; Callosities; Cape and Australian Fur Seals; Captivity; Caspian Seal; Cephalorhynchus Dolphins; Cetacea, Evolution; Cetacean Ecology; Cetacean Life History; Cetartiodactyla; Circulatory System; Climate Change; Clymene Dolphin; Coloration; Common Dolphin; Communication; Conservation; Crabeater Seal; Culture and Social Learning; Cuvier's Beaked Whale; Dall's Porpoise; Delphinids, Overview; Dental Morphology; Desmostylia; Dialects; Diet; Distribution; Diving Behavior; Diving Physiology; Dolphins, Porpoises, and Monodontids, Evolution; Dugong; Dusky Dolphin; Eared Seals (Otariidae); Earless Seals (Phocidae); Echolocation; Ecology; Elephant Seals; Embryology; Endangered Species and Populations; Endocrine Systems; Energetics; Entanglement of Whales in Fishing Gear; Epimeletic Behavior; Ethics; Evolutionary Patterns; Extinctions, Specific; False Killer Whale; Feeding Morphology; Feeding Strategy and Tactics; Filter Feeding; Fin Whale; Finless Porpoise; Fisheries Interactions; Folklore and Legends; Forelimb Anatomy; Franciscana; Fraser's Dolphin; Gastrointestinal Tract; Genetics and Genomics; Genetics, Forensics; Genetics, Management; Geographic Variation; Gray Seal; Gray Whale; Group Behavior; Guadalupe, Galapagos, and Juan Fernandez Fur Seals; Habitat Pressure; Hair and Fur; Hindlimb Anatomy; Harbor Porpoise; Harbor Seal; Harp Seal; Health; Hearing; History of Marine Mammal Research; Hooded Seal; Hourglass Dolphin; Humpback Dolphins; Humpback Whale; Hunting; Hybridism; Identification Methods; Indo-Pacific Beaked Whale; Intelligence; International Whaling Commission; Inuit and Marine Mammals; Irrawaddy Dolphin; Killer Whale; Krill and other Plankton; Language Learning and Cognitive Skills; Leopard Seal; Locomotion, Terrestrial; Management and Conservation; Manatees; Marine Parks, Zoos, and Aquariums; Marine Protected Areas; Mark-Recapture; Mass Mortalities; Mating Systems; Melon-headed Whale; Mesoplodon Beaked Whales; Migration and Movement Patterns; Mimicry; Minke Whales; Molecular Ecology; Monk Seals; Musculature; Museums and Collections; Narwhal; Neoceti; New Zealand Fur Seal; New Zealand Sea Lion; Noise; Northern Fur Seal; Ocean Environments; Odobenocetops; Omura's Whale; Osmoregulation; Otters; Pacific White-sided Dolphin; Pantropical Spotted Dolphin; Parasites; Parental Behavior; Pathology; Peale's Dolphin; Pilot Whales; Pinniped Ecology; Pinnipedia, Evolution; Pinniped Life History; Pinniped Physiology; Pinnipeds; Playful Behavior; Polar Bear; Pollution; Popular Culture and Literature; Population Dynamics; Porpoises, Overview; Predation on Marine Mammals; Predator-Prey Relationships; Prey Consumption; Pygmy and Dwarf Sperm Whales; Pygmy Killer Whale; Pygmy Right Whale; Remoras; Reproductive Anatomy; Reproductive Behavior; Reproductive Physiology; Ribbon Seal; Right Whale Dolphins; Right Whales; Ringed Seal; Risso's Dolphin; River Dolphins; River Dolphins, Evolution; Ross Seal; Rough-toothed Dolphin; Scrimshaw; Sealing; Sei Whale; Sensory Biology; Sexual Dimorphism; Shepherd's Beaked Whale; Signature Whistles; Sirenian Life History; Sirenian Evolution; Skeleton; Skull; Sociobiology; Song; Sound; Sound Paths; South American Fur Seal; South American Sea Lion; Species & Subspecies; Spectacled Porpoise; Sperm and Beaked Whales, Evolution; Sperm Whale; Spinner Dolphin; Spotted Seal; Steller Sea Lion; Steller's Sea Cow; Stock Identity and Assessment; Strandings; Streamlining; Striped Dolphin; Subantarctic Fur Seal; Surveys; Sustainability; Susu and Bhulan; Swimming; Systematics; Territorial Behavior; Thermoregulation; Thorax and Abdomen, Anatomy; Tool Use; Toothed Whales (Odontoceti); Tourism; Training; Tucuxi and Guiana Dolphins; Tuna-Dolphin Issue; Vaquita; Vision; Walrus; Weddell Seal; Whale Lice; Whaling, Illegal and Pirate; Whaling, Japanese; Whaling, Modern; Whaling, Traditional; Whiskers; White-beaked Dolphin
Thewissen, J.G.M. J. G. M. 'Hans' Thewissen studies the evolution, anatomy and embryology of marine mammals, and has travelled the world to study fossil and living whales. His work with the sense organs of modern whales explores the impact of global change on marine mammal populations. He co-edited the three editions of Elsevier's Encyclopedia of Marine Mammals and wrote a popular book on whale evolution: The Walking Whales.