It's quite simple. They didn't exist yet. No Zoras River = no Zoras. That's a pretty shallow explanation, but it's the correct one.
No. This doesn't make any sense. One, they look nothing like the Zora, unlike how the Zora looked a lot like the Rito. Two, there wouldn't be enough time for that kind of change. Three, the evolution from Zora to Rito was required for them to survive and was due to Valoo, meaning divine intervention was used. The Parella are just a new race that have been retconned into the series, just like the Mogmas. They have no connection to the Zora whatsoever.
I see where you're going with this, and I shared this sentiment as well; at first. However, there is nothing wrong with speculating on something that the game suggests. We were practically led to assume that the Parella became the Zora - by magic, by evolution, divine intervention, or a combination of the three. But your theory might just be right. :/
It's quite simple. They didn't exist yet. No Zoras River = no Zoras. That's a pretty shallow explanation, but it's the correct one.
No. This doesn't make any sense. One, they look nothing like the Zora, unlike how the Zora looked a lot like the Rito. Two, there wouldn't be enough time for that kind of change. Three, the evolution from Zora to Rito was required for them to survive and was due to Valoo, meaning divine intervention was used. The Parella are just a new race that have been retconned into the series, just like the Mogmas. They have no connection to the Zora whatsoever.
How do we know for sure the Zora evolved into the Rito? I mean Zora's are creatures made for the water. If Hyrule was flooded then that would be ideal for them. There would be no reason for them to have to change to creatures meant for the sky.
Your ability to assume fact continually astounds me.
Since when do things have to appear similar to be evolutionary related? The time is irrelevant. As demonstrated with the Zora/rito evolution. It wasn't required, there was plenty of land for them to use. The reason for their evolution is down to yet more theory and the strongest one seem to be that the goddesses/valoo were responsible as Hyrule had to remain hidden underwater.
I fail to see where the game suggested anything involving a connection between the Parella and the Zora. In WW, it was made perfectly clear that the Rito were once the Zora. There's absolutely no mention of the Zora in SS, including in Lake Floria. That's a huge red flag.
JJ, JJ, JJ, JJ... What I'm saying is that it isn't odd for a person to assume the Parella became the Zora. I'm not saying this is a confirmed fact; I'm just saying that the game loosely (as in not directly) suggests it. I don't find it the least bit odd for a person to think "Hey, where are the Zora? Hmm... They're apparently not in SS, but what are these other things? Ah, the Parella, this game's only aquatic species. Okay...so this game takes place well before OoT. Wow, so the Parella may have become the Zora overtime!"
I was opposed to the idea at first. (I wish I could find my previous posts containing my opinion on this...) But anyway, your theory might very well be correct, but I wouldn't completely dismiss the others.
I know it's not necessarily odd, but it's highly illogical. There's not even a loose suggestion that they're connected.