How do newts breathe underwater

Newts are amphibians and like most can breathe on dry land and underwater. When a baby newt hatches from its egg it is called a tadpole. Newt tadpoles have gills and can only breathe underwater. As the tadpole develops into a juvenile newt it will start to develops limbs and its air breathing internal lungs. When the juvenile newt is ready it will spend most of its time on dry land using its internal lungs to breathe. When newts reach adulthood they will return to the water spending most of their time there. At this point the adult newt no longer has gills. So how can a newt breathe underwater without gills? The process is called diffusion, this means the newt absorbs oxygen from the water through its thin permeable skin. The oxygen in the water is absorbed, or defused, directly into the animals blood vessels directly through the skin. This amazing trait comes at a price. All amphibians must keep their skin moist and are very susceptible to "drying out" if they are kept away from water for too long a period of time they will die.