Which animals breathe with lungs?

Mammals, birds, and reptiles all breathe with their lungs. From the tiniest hummingbird to the largest whale shark, they all breathe using their lungs.

While all of these species breathe using lungs, there are some species that actually breathe through their skin or gills. Amphibians are able to breathe through the entire surface of their skin or through gills, depending on which set of respiratory system they were born with. Animals that breathe with their lungs can come from all over the world and live in many different types of environments, ranging from the highest of mountain tops to the lowest jungles.