Marine mammals

Topic

Marine mammals are aquatic mammals that rely on marine ecosystems for their existence, feeding, and survival. This diverse, informal group includes cetaceans (whales, dolphins, and porpoises), pinnipeds (seals, sea lions, and walruses), sirenians (manatees and dugongs), as well as sea otters and polar bears. They have evolved various specialized adaptations to thrive in aquatic environments, such as flippers, blubber, and modified respiratory systems.