The sea mammals may actually be able to sense the amount of oxygen in their blood—something we humans can't do.

We’re here at the lake to find out how different animals breathe. All animals need to take in oxygen and get rid of carbon dioxide, but they can do this in very different ways. Take fish ...

They're also some of the only animals that can breathe with their butts. You see, inside a turtle shell is a very particular respiratory system. Wojakowski: You will see the lungs towards the top ...

In the paper, an international team of scientists reveals the discovery of a microscopic animal that has no mitochondrial DNA, which means it doesn’t need to breathe in order to stay alive.

Most people can only hold their breath for a minute or two, but some land animals have incredible lung capacity. Whether for hunting, hiding, or survival, these creatures can stay underwater far ...

Dr Chris McKnight has been researching how seals can hold their breath as part of his work at the University of St Andrews.

Any animal with gills will suffer, including fish, oysters, octopus and crabs. Other animals breathe air, like whales and turtles, so they get their oxygen from the atmosphere. They won't be affected ...