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Cetaceans

Amazon river dolphin
Species of toothed whale
Ambulocetus
Genus of extinct mammals of the order Cetacea
Baiji
Species of river dolphin
Baleen whale
Whales that strain food from the water using baleen
Basilosaurus
Prehistoric cetacean genus from the Late Eocene epoch
Beaked whale
Family of mammals
Beluga whale
Species of whale
Blue whale
Baleen whale, largest animal known to have existed
Bottlenose dolphin
Genus of dolphin
Dall's porpoise
Species of porpoise endemic to the North Pacific
Dolphin
Marine mammals, closely related to whales and porpoises
Dorudon
Genus of mammals
Evolution of cetaceans
Derivation of cetaceans from an artiodactyl precursor, and the adaptive radiation of cetacean species
False killer whale
Species of oceanic dolphin in the genus Pseudorca but
Fin whale
Baleen whale, and second-largest mammal species
Finless porpoise
Species of porpoise
Gray whale
Species of mammal
Harbour porpoise
Species of mammal
Hector's dolphin
Species of mammal
Humpback whale
A large baleen whale with long pectoral fins and a knobbly head
Livyatan
Extinct genus of sperm whale from the Miocene epoch
Mesoplodon
Genus of beaked whales
Minke whale
Species of whale
Narwhal
Medium-sized toothed whale that lives year-round in the Arctic
Oceanic dolphin
Family of marine mammals
Odobenocetops
Extinct genus of mammals
Orca
Largest living species of dolphin
Pilot whale
Genus of dolphins in the order Cetacea
Porpoise
Small cetacean of the family Phocoenidae
Pygmy sperm whale
Species of mammal
Remingtonocetidae
Family of mammals
Right whale
Three species of large baleen whales of the genus Eubalaena
Right whale dolphin
Genus of mammals
Risso's dolphin
Species of marine mammal
River dolphin
Superfamily of dolphins
Southern right whale
Species of mammal
Sperm whale
Largest species of toothed whale
Toothed whale
Parvorder of cetaceans
Vaquita
Species of porpoise
Whale
Marine mammals of the order Cetacea