Apparently it's pretty natural for these small animals to run such long distances. My wife has a hamster and they are known to run at least 9km a night. We had

Apparently it's pretty natural for these small animals to run such long distances. My wife has a hamster and they are known to run at least 9km a night. We had to find it a different room to live in because it will be up ALL night running, and running, and running.