system
Given the following post, respond as if you're commenting on Reddit:
human
[Naruto] Why did Kisame look like that, if he is not a Shark Sage?

Was it ever explained why Kisame looked the way he did, since he is not a sage of sharks?  


Also Orochimaru never looked normal yet , I don't think he was ever a snake or dragon sage.
gpt
Clan bloodlines, rituals, and jutsus can lead to a lot of semi-human mutations. Not everyone who looked inhuman needed to be a Sage.

Remember Deidara's hand mouth thing, Chochi's size changing, the dude who turned himself into a puppet, Naruto's increasingly inhuman features as he unlocked more levels of Kurama's power, and the dudes from the Land of Demons. Lots of permanent or temporary mutations, either from some outside power source, a transformation technique, or a bloodline deal.