The phrase “they don’t make ’em like they used to” definitely applies to a rare shark found off the southern coast of Portugal.
The shark in question is a frilled shark, a species that is considered a “living fossil” becauseremains of the animal date back 80 million years, according to the BBC.
The nearly 5-foot-long shark has a head like a snake and a body closer to that of an eel, but gets its name because of the frilly way its 300 teeth are arranged.
The teeth’s “frilliness,” for lack of a better term, allows the sharkto trap squid, fish and other sharks in its mouthwhen it lunges at them, Professor Margarida Castro of the University of the Algarve told the Portuguese language website Sic Noticias TV, according to the BBC.
This particular frilled shark was found off the Algarve coast, about 2,300 feet below the ocean’s surface. Researchers working on a European Union projectto reduceunwanted catches in commercial fishing found the creature, according to Newsweek.
Thefrilled shark’s ocean habitat covers a wide area. It has been sighted off the coasts of Norway, Scotland and the Canary Islands. It’s also been seen in the Indian Ocean as well as waters off of Japan, Australia and New Zealand, according to a release by thePortuguese Institute of the Sea and Atmosphere.
Samuel Garman, who was one of the first scientists to study the shark back in 1883, believed its snakelike qualities inspired legends of sea serpents,according to IFL Science.
However, because the frilled shark hangs out in such deep waters, there is very little video footage of the animal in its native habitat. Its even rarer for the sharks to be captured live for research.
This article originally appeared on HuffPost.