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- 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).
www.noaa.gov/education/resource-collections/marine-life/marine-mammalsMarine mammals - National Oceanic and Atmospheric Administration
Aug 25, 2024 · Most species of aquatic mammals live in the marine environment. There are three orders of aquatic mammals, which include: cetacea, carnivora and sirenia. Cetacea order. The most representative species within the cetacea order are: whales, dolphins, sperm whales, killer whales and porpoises.
- Whale. The largest animal on the planet. It lives in water, but its food is produced in the same way as mammals. The calves measure 7 meters and weigh 2 tons at birth.
- Dolphin. They have a fusiform body with a very large head. Its coloration is usually gray, and it is able to use sounds, jumps and dances to communicate with its surroundings.
- Sea cow.
- Walrus. Large mammal, in which, depending on the subspecies in question, many characteristics will change. Males shed their hair once a year, while females may take longer.
Aquatic mammals are creatures that primarily inhabit aquatic environments such as oceans, rivers, and lakes. They have adaptations that enable them to live and thrive in water, including features like streamlined bodies, flippers, and specialized respiratory systems.
- Whales. Whales have streamlined bodies tapering toward the horizontal tail that distinguishes them from fish. Their front limbs have been modified into broad flippers.
- True or Earless Seals. Seals live in the oceans of the Northern and Southern hemispheres, primarily in polar, subpolar and temperate climates, with the exception of tropical monk seals.
- Sea Lions. Sea lions have conspicuous external ears. Their four limbs give them good mobility on land. The 13 species of sea lions are divided into two groups, sea lions and fur seals.
- Walrus. The walrus is found in the Arctic Ocean and in subarctic seas. Walruses spend much of their time on land, but they are graceful in water. They dive up to 180 feet deep for clams and shellfish on the ocean floor, staying underwater for up to 30 minutes.
- Pinnipeds. The pinniped group includes seals, sea lions and walruses. This group of animals are characterized by being fin-footed, carnivorous and mostly aquatic.
- Cetaceans. Cetaceans are the most diverse group of marine mammals and include species of whales, dolphins, and porpoises. There are roughly 90 different species of cetaceans and this diverse group of animals can be found in oceans and in some cases- rivers, all over the world!
- Sirenians. The sirenians, also known as the sea cows, are a group of herbivorous, slow-moving, fully aquatic mammals. Sirenians are broken up into two families; the dugongs and the manatees.
- Fissipeds. While you may have never heard of the term “fissipeds”, you likely know what a fissiped is. There are many species of fissipeds, but there are only two species of marine fissiped.
Jun 22, 2024 · Aquatic mammals come in all shapes and sizes from all over the globe. **Beavers**, for example, are an easy pick for this group. But calling a **humpback whale** a fish? That’s a huge mistake! **Dolphins** and **moose** are not just great swimmers, they play key roles in their environments and show off their amazing smarts.
List of marine mammal species. 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 ...
