As adults, most live on land and need to keep their thin skin moist by staying in contact with water or by covering their skin with slimy secretions from under their skin. In addition, amphibians can actually breath through their skin as well as their lungs. They cannot drink water through their mouths so they also have the ability to absorb water through their skin. Like reptiles, all amphibians periodically shed their skin, but they have the interesting habit of eating it. They most likely eat their skin to get the nutrients from it.
Some amphibians have another amazing ability shared by few other animals.
They can regenerate, or grow back certain body parts that are damaged or bitten off by predators. Imagine being able to grow a new tail, leg, or toe. Some young amphibians can even grow new eyes or gills when they are injured. They survive cold winters by hibernating in the ground or in the mud at the bottom of ponds. Believe it or not, some amphibians can even be frozen in ice during the winter and come out of the experience very much alive in the spring.