<\/span><\/h2>\n\n\n\nGenerally, the mammals that live in the sea are well-known as marine mammals. They are generally similar to other mammals in terms of their characteristics. The only difference is that they already adopted all or part of their lives existing in the ocean. Most of them have the ability to be underwater for a longer period of time. Yet, they still need to come to the surface to give them time to breathe.<\/p>\n\n\n\n
Here is the list of marine mammals that you may enjoy watching wagging on the sea or underwater.<\/p>\n\n\n\nMammals live in the sea<\/strong><\/td>Order<\/strong><\/td>Scientific Name<\/strong><\/td><\/tr>Whales<\/strong><\/td>Artiodactyla<\/td> Cetacea<\/em><\/td><\/tr>Beaver<\/strong><\/td>Rodentia<\/td> Castor<\/em><\/td><\/tr>Dolphin<\/strong><\/td>Cetacean<\/td> Delphinus delphis<\/em><\/td><\/tr>Dugong<\/strong><\/td>Sirenia<\/td> Dugong dugon<\/em><\/td><\/tr>Hippopotamus<\/strong><\/td>Artiodactyla<\/td> Hippopotamus amphibius<\/em><\/td><\/tr>Manatee<\/strong><\/td>Sirenia<\/td> Trichechus<\/em><\/td><\/tr>Sea Lions<\/strong><\/td>Carnivora<\/td> Otariidae<\/em><\/td><\/tr>Sea Otters<\/strong><\/td>Carnivora<\/td> Enhydra lutris<\/em><\/td><\/tr>Seals<\/strong><\/td>Carnivora<\/td> Phoca vitulina<\/em><\/td><\/tr>Walrus<\/strong><\/td>Carnivora<\/td> Odobenus rosmarus<\/em><\/td><\/tr><\/tbody><\/table>Table Summary of Mammals Living in the Sea<\/strong><\/figcaption><\/figure>\n\n\n\n<\/span>1. Whales<\/strong><\/span><\/h3>\n\n\n\nGeneral Information:<\/strong><\/p>\n\n\n\n\nDIET: <\/strong>Carnivore<\/li>\n\n\n\nHABITAT: <\/strong>Warm coastal waters<\/li>\n\n\n\nAVERAGE LIFE SPAN: <\/strong>Unknown<\/li>\n\n\n\nSIZE: <\/strong>9 ft to 98 ft in length<\/li>\n\n\n\nWEIGHT: <\/strong>500 lbs to 200 tons<\/li>\n<\/ul>\n\n\n\nThe first on the list of mammals that live in the sea is none other than the whales. Compared to fish, the whales encompass a streamlined body that tapered to the supine tail. They generally have wide flippers which are highly modified on their front limbs.<\/p>\n\n\n\n
The whales are usually lacking with back limbs and outer ears. However, there is a presence of thickly layered bubbler under their skin. This part of the whales\u2019 body generally supports their way of heat conservation.<\/p>\n\n\n\n
Additionally, if you would ask what mammals live in the sea, you would find out that there are different types of whales. Here are three of them:<\/p>\n\n\n\n
Whalebone whales<\/strong><\/h4>\n\n\n\nWhalebone whales are also popularly called baleen whales. Generally, this type of mammal that lived in the sea does not have any teeth. Instead, they have plates located on their upper jaw that usually in the form of a V-shape. The basic function of the plates is to sieve or strain plankton.<\/p>\n\n\n\n
In the aquatic kingdom of Animalia, the whalebones are the largest animal ever lived. They generally grow up to 100 feet and weigh about 200 tons. Blue whales, California gray whales, Fin whales, and the Greenland right whales all belong to these mammals that lived in the sea.<\/p>\n\n\n\n
Toothed whales<\/strong><\/h4>\n\n\n\nCompared to whalebones, this type of whale is generally smaller. Their teeth appear conical and pointed on the lower or on each side of the jaws. In some instances, there is also a presence of one tusk-like tooth located on the upper jaw.<\/p>\n\n\n\n
Usually, their main food source is the fish. And there is a broad range of whales grouped under this whale type. These include the beaked whales, killer whales, narwhal, sperm whales, and white whales or beluga. Moreover, the harbor porpoise, Atlantic dolphin, and river dolphin are also included in this group.<\/p>\n\n\n\n
<\/span>2. Beavers<\/strong><\/span><\/h3>\n\n\n\nGeneral Information:<\/strong><\/p>\n\n\n\n
\nDIET: <\/strong>Herbivore<\/li>\n\n\n\nHABITAT: <\/strong>Freshwaters like the lakes, streams, and ponds and in heavy woods rivers<\/li>\n\n\n\nAVERAGE LIFE SPAN: <\/strong>10 to 20 years<\/li>\n\n\n\nSIZE: <\/strong>4 ft average in length<\/li>\n\n\n\nWEIGHT: <\/strong>24 lbs to 66 lbs<\/li>\n<\/ul>\n\n\n\nThe beavers are the other mammals that live in the sea. Traversing the rivers and lakes along with Asia, Europe, and North America, you may see one of the mammals that live in the sea. The beavers may also be found enjoying along the southern deserts of Mexico and the US. Generally, this mammal features a coat resistant to water and ears and nostrils that are usually closable.<\/p>\n\n\n\n
Averaging from 30 to 50 pounds, the beavers also have paddled tails and webbed feet. With that, they tend to be the world\u2019s second-largest rodent. And, compared to other mammals or all animals within the kingdom Animalia, beavers’ resources are credited to produce its distinct dam. <\/p>\n\n\n\n