Singing groundhog

A singing groundhog is an animal first seen at Aang's mini vacation spot.

Anatomy
The singing groundhog is a small, brown, and furry rodent, and is very cute-looking. Most people can't resist the urge to laugh when they sing.

Connection
The singing groundhog seems closely related to the real life prairie dog, which also enjoys popping up out of little holes in the ground, rather than the groundhog.

Behavior
These creatures live in huge colonies on wide open prairies near the Si Wong Desert. With an ear for music, they will respond to single tones from a flute or other instrument by repeating that tone back to the player. These little critters attract tourists from all over the world. As Aang demonstrated, these creatures have an innate musical ability and will respond to any musical note by singing a pitch-perfect response. They even responded to Sokka's sarcastic "la-de-da". Like ordinary groundhogs, they feed off insects and roots. Singing groundhogs most likely hibernate, so they can't be seen in the winter.