Seahorse, a small fish that lives in the sea, is famous for its unique shape and strange living habits. Seahorses, belonging to the family Seadragon, have a body shaped like a horse's head, often with a twisted tail, and can be used to perch firmly on coral reefs and seagrass beds. This paper will discuss the biological characteristics, living habits and the importance of seahorses in the ecosystem.

Seahorses have very distinctive features, usually with long, streamlined bodies and a horse-like head. Their skin appears in a variety of colors to adapt to different habitats. This adaptation not only helps seahorses hide from predators, but also attracts mates during the breeding season. Unlike other fish, seahorses swim in a very unique way. They rely on the rapid flapping of their dorsal fins and the subtle adjustment of their pelvic fins to move slowly and steadily through the water.

Seahorses also reproduce in a very special way. In many species, male seahorses accept eggs from females and incubate them in their specialized brood capsules. This process shows that the seahorse will act in an anti-sex role in reproduction, and the male will assume the responsibility of pregnancy. Breeding of seahorses usually takes place during specific seasons, accompanied by courtship dances and color changes, making the process very entertaining to watch.

From an ecological point of view, seahorses play an important role in Marine ecosystems. They act as part of the benthic food web, incorporating plankton and small crustaceans into the food chain. Seahorses' habitats, such as coral reefs and seagrass beds, not only provide shelter for them, but also provide habitats for other creatures. Therefore, the health of seahorses is often an indicator of the health of aquatic ecosystems.