Shape-shifting dolphins in the Amazon River

In the conclusion of the original Aladdin story, there's the meteoric rise of Aladdin, who is definitely not using magic to do any of this. Really. Will people just stop asking him that, already? I mean, so what if he made the most magnificent palace in the world overnight, and that it randomly disappeared. Nothing at all suspicious about that.
In the creature of the week, there's shapeshifting dolphin people. Here's the picture mentioned in the show...I could see it:
And here's a link to what Mary Sue means.

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