Once upon a time, a long, long time ago in the Dream Time there was a greedy frog called Tiddalick, that wanted to be the biggest frog in all the land. 

One very hot day Tiddalick was very thirsty so he began to drink and drink and drink until the whole billabong was all dried up. When all the other animals came to the billabong to drink there was no water. 

They knew it was the greedy frog who drank all the water. They were very angry at him. 

If the animals wanted to get all the water out of Tiddalick and back into the billabong they would have to make Tiddalick laugh until all the water came out. 

The echidna tried to make him laugh by rolling down the hill into the dried up billabong but Tiddalick didn't laugh.