1. Hippocampus belongs to fish and taxonomically to bony fish. Because it breathes through gills, it has spines, dorsal fins, pectoral fins and caudal fins, so it is named after its head resembles a horse's head.

2. The tail of hippocampus is slender, quadrangular and can be curled. This makes the hippocampus hook the seaweed with its tail and stand upright in the water.

3. Hippocampus (Latin name: Hippocampus) is the general name of several small warm marine fishes of the family Syngnathidae, and it is a small marine animal with a body length of 5 ~ 30 cm. Named after the head bends at right angles to the body, the head is horsehead-shaped, at an angle to the body shape, with a long tubular snout, a small mouth and dorsal fins, all of which are composed of fins. The eyes can move independently.

4. Hippocampus moves slowly, but it can effectively capture fast-moving and hidden copepods, which are distributed in Atlantic Ocean, Europe, Pacific Ocean and Australia.