Everything changes over the years. But we only change some, I mean not more than humans over their lifetime, and those too close to us don't change at all. Which is why we can't keep humans too close, they somehow cannot deal with that. [He shrugs. It sucks, but he has gotten over it a long time ago. Or so he tells himself.] Animals can, though. The little dog that Fin and Sweden have is several centuries old now by what I can tell, and Ned has had a rabbit fer about the same amount of time.