Talk:The Dazzlings/@comment-27320592-20160412023453/@comment-7345250-20160414033845

They are not fish, nor are they reptiles.

Consider this: Whales are not fish. Whales abandoned numerous features to pursue an aquatic lifestyle, but they are still mammals. All mammals are synapsids. All synapsids are amniotes. All amniotes are tetrapods.

What is a tetrapod? It is a creature descended from the first vertebrates that diverged from fish and started using four limbs for locomotion on land. Yes, fish, by definition, are just the vertebrates that are not tetrapods. Even snakes are tetrapods. Whales reacquired a few features associated with fish, but that does not make them fish. The whale is a result of tetrapods evolving away from fishy features and then back, whereas fish have been sustaining those features for eons.

Likewise, the Sirens are not fish. They display hooves and horse-faces. This strongly implies they are ungulates. Ungulates are mammals and synapsids. Were it not for those hooves, it might actually be reasonable to argue that they are reptiles, but then again... those horse faces suggest they are synapsids, and they possess hooves which are found exclusively in mammals.

...

Okay, I'm done. It's a cartoon.