Air
Marine mammals live and water and they need to surface to breathe. While land mammals can breathe just as humans do.
Whales need to breathe air because they are mammals, like humans, and require oxygen to survive. Even though they live in water, they have lungs and need to come to the surface to breathe.
animals who eat and breathe a lot. Some that go in the water, others that are mammals. Mostly mammals.
Fish and mammals are both animals with backbones (vertebrates). However, fish typically live in water and breathe through gills, while mammals live on land or in water and breathe air through lungs. Additionally, mammals give birth to live young and nurse them with milk, whereas fish typically lay eggs.
Black Bears are mammals and live on land. Mammals have lungs. They breathe the same way you and I do.
They live anywhere where their family is. It's called a pod.
In the water. When beached, they cannot live long, even though they can breathe air.
Most get it from the dissolved oxygen in the water through their gills. Others, such as sea mammals, dolphins etc, need to surface to breathe
I hope you mean under water. And yes they can. Some mammals even live under water, like a dolphin, whale or seal.
Yes, all animals that live in the water breath air bubbles. without air bubbles the fish will die. some animals in that water can go for a longer amount of time with out air. example dolphins.
They are mammals. Although they live in water, they also breathe air. They have learned to hold their breath for a couple of hours. Imagine that...
well, their gills train them to breath without water and live.