What are the 5 groups of marine mammals?
Similarly one may ask, what are the 4 groups of marine mammals?
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).
Beside above, what characteristics do all marine mammals share? Marine mammals share several characteristics that are common among all mammals such as the need to breathe air, being warm-blooded, having mammary glands which produce milk to feed their young, giving birth to live young (pregnancy/gestation periods) and in some cases having hair.
Keeping this in view, what sea life are mammals?
Marine mammals are aquatic mammals that rely on the ocean and other marine ecosystems for their existence. They include animals such as seals, whales, manatees, sea otters and polar bears.
What type of fish are mammals?
Dolphins, whales, seals, sea lions, and otters are all mammals. They give birth to live young and nurse their young with milk. In contrast, even though some sharks give birth to live young, sharks are fish.