Because those silly water breathers cant handle our air
Mammals have lungs, as do amphibians, reptiles, and birds. Fish are the only chordates that have gills rather than lungs.
No. Narwhals, being mammals, use lungs and a "blowhole" for breathing, rather than gills.
Amphibian lungs do not have to be as efficient as gills because there is much more oxygen in air than in water.
Gills.
Gills
People can not breathe water. We have lungs rather than gills.
Lungs and gills help animals breathe by taking in oxygen and than releasing carbon monoxide.
It takes in oxygen and releases carbon dioxide through small gills on the sides of its head, just like other fish do but I am not sure if the proper term for it is 'breathing', or if there is another term for it with fish since the oxygen is absorbed though the gills, rather than taking it directly to the lungs.
YesYes, they do.Yes, being mammals, dolphins breathe with lungs rather than gills. Rather than breathing through the nose and mouth, they breathe from a blowhole which closes before the dolphin goes into the water, so water will not enter the blowhole.
through there skin.....
Dogs breath through their mouth and nose using their lungs.
Limpets have gills to protect themselvesAdditional answerGills are not a protection any more than human's lungs are a protection.. They are a means of breathing. The protection is the hard conical shell and the way the limpet firmly attaches itself to rocks.