The Singing Hippo

Once upon a time, a hippopotamus lived in a river next to a big and solitary tree.

One day, a bird came and nested in the tree. The songs and the flight of the bird caused such envy in the hippo that he couldn't think of anything else. Every day he would lament the fact that he had been born a hippo. This, despite the many times the bird told the hippo he was so lucky to be so big and...