Why Frogs Are Wet

Why Frogs Are Wet

Frogs were here on earth before people. They were here before monkeys, or cats. Frogs were here before giraffes. Frogs have been here for millions of years.

Long before there were frogs, there were fish. The fish breathed through their gills. After a long time, new kinds of fish appeared. These new fish had lungs for breathing. They could live out of water for a little while. When their ponds dried up, they were able to flop about on land. They had to flop, because they had no legs.

Later, some kinds of fish appeared that had legs in place of fins. Now they could move on land or in the water. These were forefathers of our frogs.

A frog can live in the water and on the land. It is called an “ amphibian. " “ Amphibian" is from a Greek phrase that means “ having a double life. ”

The frog has wet skin. The wet skin holds the secret of its double life. The frog breathes through its skin. It also breathes through its lungs.