The Dolphins are the main antagonists of "Night of the Dolphin", the third act in Treehouse of Horror XI.

In a parody of "The Day of the Dolphin", Lisa takes pity on a dolphin named Snorky, the main attraction in a show at Marine World, freeing him from captivity after everyone has left. Unfortunately, this starts off a chain of disastrous events culminating in all of the world's dolphins taking over Springfield, forcing the residents to live in the sea.