PostItEase said: Who said that yukkuri and regular animals could not live together?
It depends on the animal. If the animal is not a blood-thirsty hunting killer, or the yukkuri is introduced as the cat is a kitten, then it'd probably be fine.
It would also depends on the yukkuri though. Animals do have their limits on patience as do humans, so if the yukkuri is too annoying.... yeah.