Amphibians Breathe With Gill
Not all amphibians can breathe underwater.
Amphibians breathe with gill. The external nares also help them breathe. Just like most amphibians the different salamander species breathe through a membrane in their throat and mouth skin lungs and gills. One example of an amphibian is a frog.
Many young amphibians also have feathery gills to extract oxygen from water but later lose these and develop lungs. The mouth closes the gill cover opens and the water is pressed out of the body together with the carbon dioxide as a by-product see picture. Gill breathing - Illustration.
As they grow to adulthood amphibians normally become land-dwelling creatures lose their gills and develop lungs for breathing. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. A few amphibians dont bother with lungs and instead absorb oxygen through their skin.
Amphibians live underwater and breathe through gills at one stage of their life and live on land breathing through lungs at a later stage. Tadpoles are frog larvae. There are a few amphibians that do not have lungs and only breathe through their skin.
Also do amphibians breathe air or water. They also have fins to help them swim just like fish. There are some salamanders called the lungless salamanders that have no lungs and rely entirely on their skin to breathe.
Most amphibians begin their life cycles as water-dwelling animals complete with gills for breathing underwater. They lay eggs in water not on land and their eggs are soft with no hard shell. The reptiles lung has a much greater surface area for the exchange of gases than the lungs of amphibians.