marinemammals
nounUK /məˈriːn ˈmæməlz/
US /məˈriːn ˈmæməlz/
Marine mammals are animals that live in the sea, breathe air, and feed their babies milk.
Whales, dolphins, and seals are all marine mammals.
OTHER MEANINGS
2. A group of animals scientifically classified as mammals that depend on the ocean or sea for food and habitat.
Scientists study marine mammals to learn how they survive in cold water.
3. Animals such as whales and dolphins that must come to the surface to breathe.
Marine mammals often swim up to the surface to take a breath.
4. A category used in conservation to protect sea-living mammals from harm.
Laws protect marine mammals from being hunted or disturbed.