The has a large mouth with 25 rows of 300 sharp teeth, six pairs of fringed gill slits, and a long, eel-like body that can grow up to 6 feet long. It's referred to as a "living fossil" because it's a member of one of the oldest living shark species.
Frilled sharks usually live thousands of feet below the surface, but occasionally come up to our level just to remind us how freaky the ocean can be. They look like a basic model of a shark before sharks learned how to shark.
Flaring the gills, gives the species its name, a Frilled Shark swims at Japan's Awashima Marine Park. Sightings of living frilled sharks are rare, because the fish generally remain thousands of feet beneath the ocean's surface.
Frilled Shark — In a fisherman near Tokyo, Japan, told Awashiwa Marine Park officials that he'd just seen a very unusual eel-like creature with needle-sharp teeth. They caught the oddity, later identified as a frilled shark.