Question: how deep do frilled sharks live?
Answer: It has been caught as deep as 1,570 m (5,150 ft), although it is uncommon below 1,200 m (3,900 ft). In Suruga Bay, Japan, it is most common at depths of 50–200 m (160–660 ft). Exhibiting several primitive features, the frilled shark has often been termed a living fossil.