The shark is said to date back 80 million years and features a range of primitive features, such as 300 sharp teeth and a weakened vertebrae among other attributes. The interesting thing was that the prehistoric frilled shark was caught alive and not in the form of fossils.
After noticing the creature's odd appearance, the commercial fishermen handed it over to a research team from the Institute for the Sea and Atmospheres, who were working on a project to decrease unwanted catches in commercial fishing.
The shark caught this summer measured around five feet in length, but at their longest can be around six-and-a-half feet, IFL Science reported. The scientists named the creature as Chlamydoselachus anguineus for its gills - the frilled arrangement of 300 teeth, neatly lined in 25 rows. The gills of the shark has frilly, fluffy edges, but the cuddly factor ends abruptly there.
The shark was caught at a depth of 701 meters near the resort of Portimao. The discovery adds to the list of very few sharks recently found in Australia, New Zealand and Japan. Another study of a Suruga Bay inhabitant showed that frilled sharks may also have the longest gestation period of any living creature, 42 months.
The frilled shark has a remarkably simple anatomy, probably because of a lack of nutrients in its aquatic environment.
The frilled shark's mouth gives an appearance of it being bigger in size than other sharks; however, this is because the mouth stretches to the back of its head instead of ending beneath the skull.
This time, however, scientists have come across an exceptionally rare find: a living fossil. Scientists only know that these are one of the creepiest creatures existing beneath the ocean surface.