"They've almost never been seen live." Rarely seen 'doomsday fish' sparks concerns after washing ashore on Mexico beach: 'Nobody's going to believe this' first appeared on The Cool Down.

The oarfish can grow up to 30 feet long, Fox 9 reported. It’s rare to catch sight of it, as it lives 660-3,300 feet below the surface of the ocean. Scientists believe oarfish may come to the surface when they are dying or disoriented.

A rare oarfish, often called the "doomsday fish," was spotted in Mexico—just days after another deep-sea creature, a deep-sea anglerfish, made a rare appearance in daylight.