Lungs are found in many animals, but they are different in size and shape! For example, humans have two lungs. However, birds have
a unique system that allows them to breathe continuously while flying. π¦
Instead of alveoli, they have air sacs that keep air flowing through their lungs. Fish, on the other hand, donβt have lungs; they breathe using gills that extract oxygen from water! π
Each animal has adapted its breathing system to fit its needs, showing how amazing nature can be!