Considered to be the origin of the sea serpent tale, giant oarfish are a species yet to be largely researched by scientists.

The doomsday fish got its name because it looks like a mythical sea creature, with a long, ribbon-shaped body that can grow up to 30 feet.

A rare oarfish, often referred to as a "doomsday fish," washed ashore on Grandview Beach in Encinitas, California, marking the second such occurrence in 2024. A doctorate candidate from the Scripps Institution of Oceanography made the discovery of the 9–10 foot deep-sea monster public on social media.