Method of Breathing was created in 2002.
Just like humans although they don't need as much oxygen because they're smaller(most birds) The bigger ones breath like us!
Mammals, birds, reptiles and adult amphibians breathe using lungs. Fish breathe using gills, while juvenile amphibians breathe using gills and spiracles.
The Buteyko method strives to remove the bad habits of over-breathing and to replace them with new habits of slower, shallower breathing, called "reduced breathing."
Circulation.
Lungs you idiots lungs
It is by air bubbles.
gills and lungs
they breath through their lungs
they breath out of their eye holes
flying
Penguins are birds and like all birds they get oxygen by breathing air.