Two rarely-seen deep-sea creatures recently washed up on a beach in Mexico and according to legend, it's not a good sign.

The incident came to light when sisters Monica Pittenger and her sibling noticed something “flashing” in the distance while on the beach in Cabo San Lucas.

Reviewing those rare encounters, marine scientist Mark C. Benfield at Louisiana State University (LSU) connected scattered sightings and documented the fish alive in its natural depth range. Footage ...

“A beach day in Cabo took an unexpected turn when two sisters spotted something strange flashing in the distance." ...