The Seahorse's scientific name, Hippocampus, is derived from the Ancient Greek word for horse (hippos). Interestingly, there is a part of our own human anatomy that shares this name with these beautiful fish, due to its resemblance of them. The [human] Hippocampus is a complex brain structure embedded deep into temporal lobe. It has a major role in learning and memory. 

These delicate creatures are found in the underwater grasslands and coral reefs of the Oceans. Their habitats are the most sensitive and most threatened by human activity such as pollution. Many indigenous cultures, such as the Aboriginal peoples, knew Seahorses to represent ancestral knowledge. Which comes full circle with modern day science giving our own brain's "memory center" the namesake of the Seahorse.