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Dec 1, 2020 · What are marine mammals? Marine mammals are warm-blooded vertebrates (animals with a backbone) that bear live young and nourish them with milk as land mammals do, but that spend most or all of their lives in the ocean.
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.
There are five groups of marine mammals: pinnipeds (or “flipper-footed” animals like seals, sea lions, fur seals and walruses), cetaceans (species that cannot survive on land, such as whales, dolphins and porpoises), sea otters (the smallest marine mammal), sirenians (warm water species such as dugongs and manatees) and polar bears (which depend...
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Feb 13, 2024 · Marine mammals are those whose life cycle is at least in part dependent on the ocean. They include cetaceans, such as whales and dolphins, sirenians, such as dugongs and manatees, pinnipeds,...
Abstract. 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 ...
Oct 4, 2022 · (NOAA Photo Library) Marine mammals or cetaceans may be adversely affected by human activities including underwater noise and ship strikes. One such activity, ship strikes of cetaceans, is a growing concern with the increasing number, size, and speed of ships.
