The hippocamp (ἱπποκαμπος, from ιππος meaning hors and κάμπος meaning monster).
They were the the half horse, half fish creatures that drove the sea-chariot of the god of the sea Poseidon (who was also the god of horses).
A centaur is a mythical creature that is half human, with the torso and head of a human, and half horse, with the body and legs of a horse. They are known for their strength, speed, and skill in archery.
Half human, half fish is a Mermaid.
Ophitaurus is a mythical creature that is half fish half cow.
A mythical creature that is half horse and half human is called a centaur. In Greek mythology, centaurs are known for their strength and wild nature, often depicted as living in forests and engaging in battles.
Half man half horse Forward half was human down to the waist, rear half was horse from the shoulders down.
A Homosapien eating cenataur Kelpie
Pig or Swine (Greek "hus")Horse (Greek "Hippoi")Hippohus?
A Koi-dragon is mythical Japanese creature that is half koi fish at the back and a dragon front end
The creature that is half man, half horse on the TV show "Hercules" is a centaur. A centaur is a mythical beast from Greek and Roman mythology.
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Since they are mythical, there is no solid proof. Seeing as how they are half horse and half fish, perhaps they eat seaweed and even small fish.
Since the hippocamp is a half-horse half-fish creature, the tail is used for swimming.