Forget about the minuscule odds of spotting Ahab’s white whale: Sightings of the frilled shark, a so-called “living fossil” that has elusively swum around Earth’s deep waters since the age of the dinosaurs, may been an even rarer find.

Deep-sea fishermen recently spotted the snake-like shark (Chlamydoselachus anguineus) in a pile of fish that unintentionally caught, known as bycatch, while they were fishing off the coast of Portugal. The shark died, but the fishermen handed it over to a research vessel, where scientists could study it, according to Boy Genius Report (BGR), a news site.

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