The Oarfish is a rare, solitary, and giant denizen of the ocean depths (arguably larger than a Whale Shark. (The as opposed to the Whale Shark, in the Guinness Book of World Records.)) and is a filter feeder, comfortable cruising at depths of 200 m.
When they unfold and get out in the open, they are formidable animals indeed: (a diver gets acquainted with one old and wise specimen in the Japan Sea, Primorie, Russia - a Giant Pacific Octopus Doflein).
The Lions Mane Jellyfish -- largest jelly fish in the world. Found in the boreal waters of the Arctic The Lions Mane Jellyfish -- largest jelly fish in the world. Found in the boreal waters of the Arctic
After the whale shark, the basking shark is the second largest living fish, and can grow up to 32 feet long. These sharks are often mistaken for plesiosaurs, a group of long-necked, predatory marine reptiles that lived at the time of the dinosaurs