Princess and dragon hero is envisioned as slaying dragons even though, for instance, the Brothers Grimm had only a few tales of dragon and giant slayers among hundreds of tales. One of the earliest example of the motif comes from the Ancient Greek tale of Perseus, who rescued the princess Andromeda from Cetus, a sea monster often described as resembling a serpent or dragon. This was taken up into other Greek myths, such as Heracles, who rescued the princess Hesione of Troy from a similar sea monster. Most ancient versions depicted the dragon as the expression of a god's wrath: in Andromeda's case,
Sea monster Tropical cyclones such as hurricanes or typhoons may also be another possible origin of sea monsters. In 1892, Anthonie Cornelis Oudemans, then director of the Royal Zoological Gardens at The Hague saw the publication of his "The Great Sea Serpent", which suggested that many sea serpent reports were best accounted for as a previously unknown giant, long-necked pinniped. It is likely that many other reports of sea monsters are misinterpreted sightings of shark and whale carcasses (see below), floating kelp, logs or other flotsam such as abandoned rafts, canoes and fishing nets. Sea monster corpses have been reported since recent