While I think it would be cool for nawbut to be old and wise looking with a beard and amish hat, I think he's much younger than that.

And Hansmoleman, I think he's a pudgy middle aged guy, who gets a beet red face when he gets worked up.

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Tiger got to hunt, Bird got to fly, Man got to sit and wonder 'Why, why, why?'
Tiger got to sleep, Bird got to land, Man got to tell himself he understand.
~Bokonon