What do you think of when Poseidon is mentioned? A formidable, bearded Greek deity rising from the churning ocean? His weapon of choice, the powerful trident? His entourage of dolphins and other aquatic fauna? All these are expected of the Olympian god of the sea. It may be surprising and counterintuitive that a central part of Poseidon’s identity was his profound connection to an animal linked to the land mass: the horse.