The frilled shark has a long, eel-like body that can grow up to 6.5 feet (2 meters) in length. The body is dark brown or gray, with a cylindrical shape that tapers into a flattened tail.

The frilled shark (Chlamydoselachus anguineus), also known as the scaffold shark, is often called a "living fossil." This ancient shark has remained largely unchanged for millions of years, offering ...