>>51829900Animals don't try to make themselves streamlined, they just tend to already be streamlined, but not if they're trying to intimidate something or make themselves look unappealing to predators.
I don't know if you noticed but Koraidon is the 'form over function' kind of super showy masculine animal. It's like a Peacock. In Koraidon's case, it's probably something that can help in case of emergencies too, it looks tougher than most of the rest of it so it could probably also use it to attack with.