Frogs have very special skin- it not only protects them but they drink and breathe through it. Frogs don’t usually swallow water like we do. Instead they absorb most of the moisture they need through their skin. They also get extra oxygen from the water absorbed through their skin. So it is important for frogs to keep their skin moist or they might suffocate. Some times you’ll find frogs that are slimy. This is because the frog skin secretes mucus that helps keep it moist. Even with the slimy skin, these frogs need to stay near water.
Frogs shed their skin regularly to keep it healthy. Some frogs shed their skin weekly, others as often as every day. To do this, they start to twist and turn so as to stretch themselves out of their old skin. Finally, the frog pulls the skin off over its head, like a sweater, and eats it!