People Are Noticing That This Dolphin Looks Like A Mythological Creature (3 pics)

Not a Dolphin. It's a Beluga Whale.

that is not a goddamn dolphin

It turns out that the term "whale" describes two very different groups of cetaceans:

1. The Odontoceti, or toothed whales, which comprise the sperm whale, belugas, narwhals, orcas, dolphins and porpoises.

2. The Mysticeti, which are the baleen whales, such as humpback whales, blue whales, right whales, etc.

So, even though the sperm whale, and the killer whale and beluga whale, etc. are all whales, they are closer to dolphins than to the baleen whales in the phylogenetic tree. Thus, the term 'whale' is not that important, because basically it means a medium to large size cetacean.

Incidentally, beluga whales and narwhals are closely related and are the only members of the family Monodontidae

The wonder of Google.