Do most people not know the answer you imbocile
They use their gills to breathe under water.
they have gills
No, no mammals don't have gills, and can't breathe under water. Mammals have lungs, breathe air and have to hold their breath when diving.
they may have gills
well yes they do 'breathe' underwater with their gills
because humans do not have gills.
It could be possible
They have gills, wich are extremely blood-rich organs. Gills collect oxygen from the water so the animal can breathe.
No, gills do not work on land. Gills are used for water purpopes only, to help breathe under water.
No, mammals don't have gills, and can't breathe under water. Mammals have lungs, breathe air and have to hold their breath when diving.
dissolved oxygen in water that is absorbed by the gills.
Fish breathe through their gills. There are usually gills on either side of the pharynx. Gills have thread-like structures (filaments). These filaments exchange the oxygen and carbon dioxide.