AMPHIBIAN SKIN Slimy Skin?
Some amphibians have slimy skin, but some don't. Most amphibians have soft, smooth skin and they keep their skin wet. So their skin feels slimy, but it's really just slippery from being wet. Toads have thicker skin that feels soft, but dry. Mudpuppies have very slimy skin, just like a fish. They live in the water and their thick slime helps protect their skin.
Airy Skin
Amphibians can breathe through their skin! They have lungs to breathe air in and out, but air moves in and out of their skin, too. They also drink through their skin. They don't swallow water. They sit in a wet place and water moves into their body through their skin.
Shed Skin
Amphibians shed their skin several times a year. The shed skin is soft and they eat it. So you won't find the skin of a frog or salamander, like you could find the skin of a snake.
Safe Skin
Some amphibians are protected by their skin. Some toads and salamanders have bad tasting liquids in their skin. If an animal tries to eat them it gets a mouthful of the bad tasting liquid and lets go. Sometimes the bad tasting liquid can make the animal sick. So many animals will not even try to eat a toad or salamander.