Flexi Says: It is, and there are about 50 species of seahorses. Although they are bony fish, they do not have scales, but rather a thin skin stretched over a series of bony plates arranged in rings throughout their body. Each species has a distinct number of rings. Seahorses have a coronet on their head, which is distinct to each individual, much like a human fingerprint. Seahorses also swim upright, a characteristic not shared by other fish. Seahorses are poor swimmers, so they are most likely to be found resting, with their prehensile tails wound around a stationary object. They have long snouts, which they use to suck up food, and eyes that can move independently of each other. Seahorses eat small shrimp, tiny fish, crustaceans, and plankton.