Dude zolas are in my view a simple political classification that means uncivilized zoras. And I know that rito aren't born with wings. When i said they thought it would best that they adapt wings i sorta goofed. What i meant was to say that they develope the ability to sustain themselves at...
Dude while there were no civil zoras that were peaceful there were the malicous ones which attack you as the fishy warriors at places like the cave on molidia and at the spot on molidia where you have to defeat two of them to reveal a statue.
You are right it would probably be better if they remained zoras but if they evolved into the rito then how could there be zoras in phantom hourglass not even a year after windwaker as well as there still being rito postmen. my guess is that 'semiaquatic' zoras that spend most of their lives...