A long time ago, when all animals used to speak the same language, there was already a zoo. There was just one animal of each type. They all lived separately, in their own cage and they couldn't see each other.
They were losing their minds because of being alone.
One day a little hedgehog started to cry: ''I'm hedgehog and I feel so alone!''
The animal in the next cage heard it and spread the word to the next cages until all animal knew: ''There lives a little lonely hedgehog with us.''