Any animal that does not have lungs.
The function of an adult animals lungs is to breathe!
An animal that uses lungs for breathing has a pulmonary circulatory system. Mammals are the most common type of animal that breathes through lungs.
Earthworm.
it gives them air in the their lungs
snake
Horse
frog and birds
The function of the lungs in a fetal animal is to supply oxygen. This is considered to be one of the most hard working organs in the body.
because animal breath
it gives them air in the their lungs
The diaphragm helps bring air into animal lungs.