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Marine mammals comprise over 130 living and recently extinct species in three taxonomic orders. The Society for Marine Mammalogy, an international scientific society, maintains a list of valid species and subspecies, most recently updated in October 2015. [1] This list follows the Society's taxonomy regarding and subspecies.
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Feb 1, 2019 · Marine mammals are classified into four different taxonomic groups: cetaceans (whales, dolphins, and porpoises), pinnipeds (seals, sea lions, and walruses), sirenians (manatees and dugongs), and marine fissipeds (polar bears and sea otters).
There are 130 described species of marine mammals living in the earth’s oceans. They are divided into three orders: Cetacea (dolphins, whales, and porpoises), Sirenia (sea cows), and Carnivora (carnivores). Within those orders are several suborders and families.
Marine mammals are mammals that rely on marine (saltwater) ecosystems for their existence. They include animals such as cetaceans ( whales , dolphins and porpoises ), pinnipeds ( seals , sea lions and walruses ), sirenians ( manatees and dugongs ), sea otters and polar bears .
Marine Mammals of the World is a field guide and handbook to all of the marine mammals of the world. It follows the internationally accepted taxonomy of the Society of Marine Mammalogy. All of world’s species are included and the account for each has information on common and scientific names, species characteristics, recognizable geographic ...
Researchers around the world continue to study marine life and habitats to help develop new strategies to preserve vital ocean ecosystems. Scientists estimate that 91 percent of ocean species have yet to be classified , and that more than eighty percent of our ocean is unmapped, unobserved, and unexplored. .
Dec 5, 2023 · There are five main groups of marine mammals and around 125 total species. 1. Baleen whales (suborder Mysticeti) A North Atlantic right whale with mouth open to show baleen. Photo: © Nick Hawkins. Baleen whales are part of the cetacean infraorder, along with porpoises, dolphins, and toothed whales.
