Seahorses are truly unique, and not just because of their unusual equine shape. Unlike most other fish, they are monogamous and mate for life. And the male bears the unborn young.
Seahorses are not good swimmers. Uniquely, they swim in an upright position which is not efficient. During strong currents and sea storms they avoid death by anchoring their prehensile tail to coral or sea grass. This keeps them stable allowing them to feed and survive.
They also use their tail as a weapon when fighting over territory or partners. Yet pairs of seahorses often swim together linking tails when the battle is over.
Seahorses do not have teeth or a stomach! This means their food passes straight through and they must eat almost continually to stay alive.
Male seahorses have a brood pouch on their front-facing side. When mating, the female deposits her eggs into his pouch, and the male fertilizes them internally. He carries the eggs in his pouch until they hatch, then releases fully formed, miniature seahorses into the water.
Despite seahorse's cute appearance and unassuming demeanor, they have a 90% success rate of killing and eating intended prey.