46 recognized species of seahorses are found in the oceans. Seahorses are believed to be brave navigators of the sea.
According to Romans, if a sailor dies at sea, a seahorse will guide him to the afterlife, protecting him until he gets to his destination.
In Scottish folklore, they are a water demon spirit in the shape of a horse, with shape-shifting abilities and could turn into human forms.
They were viewed as symbols of good fortune by the Chinese.
In Japanese, seahorse “tatsuno-otoshigo” literally means “baby dragon”
Seahorses are charismatic. Couples 'greet' each other every day and hold tails. This love ritual is performed every morning reinforcing the pair's bond, wherein the individuals change colors and dance in synchrony for about ten minutes, before separating for the day.
A dead seahorse is a bad omen — whether you see it in person or in a dream. You should be wary of starting new projects until the unluckiness passes.