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Hace 3 días · A dolphin is an aquatic mammal in the clade Odontoceti ( toothed whale ). Dolphins belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins ), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and possibly extinct Lipotidae (baiji or Chinese river dolphin).
Hace 2 días · Cetacea (/ s ɪ ˈ t eɪ ʃ ə /; from Latin cetus 'whale', from Ancient Greek κῆτος 'huge fish, sea monster') is an infraorder of aquatic mammals belonging to the order Artiodactyla that includes whales, dolphins, and porpoises.
Hace 2 días · Mammals and birds. Orcas are sophisticated and effective predators of marine mammals. They are recorded to prey on other cetacean species, usually smaller dolphins and porpoises such as common dolphins, bottlenose dolphins, Pacific white-sided dolphins, dusky dolphins, harbour porpoises and Dall's porpoises.
Hace 5 días · The platypus (also commonly known as the duck-billed platypus) is a small species of semi-aquatic mammal indigenous to the eastern coast of Australia. Known for its unique-looking appearance, the platypus belongs to a small group of mammals called monotremes, of which there are only a few species.
Hace 3 días · dolphin, any of the toothed whales belonging to the mammal family Delphinidae (oceanic dolphins) as well as the families Platanistidae and Iniidae, the two that contain the river dolphins. Of the nearly 40 species of dolphins in the Delphinidae, 6 are commonly called whales, including the killer whale and the pilot whales.
Hace 5 días · platypus, ( Ornithorhynchus anatinus ), a small amphibious Australian mammal noted for its odd combination of primitive features and special adaptations, especially the flat, almost comical bill that early observers thought was that of a duck sewn onto the body of a mammal.
Hace 5 días · The hippopotamus is a large semi-aquatic mammal that is found wallowing in the rivers and lakes across sub-Saharan Africa. Despite its appearance, the hippopotamus is an animal that is actually thought to be most closely related to whales, as the two are thought to have had a common ancestor that existed roughly 54 million years ago.
